diff options
Diffstat (limited to 'drivers/char/sx.c')
| -rw-r--r-- | drivers/char/sx.c | 1822 |
1 files changed, 976 insertions, 846 deletions
diff --git a/drivers/char/sx.c b/drivers/char/sx.c index ca6d5189501..401ebab2601 100644 --- a/drivers/char/sx.c +++ b/drivers/char/sx.c @@ -238,7 +238,6 @@ #include <linux/generic_serial.h> #include "sx.h" - /* I don't think that this driver can handle more than 256 ports on one machine. You'll have to increase the number of boards in sx.h if you want more than 4 boards. */ @@ -253,7 +252,6 @@ /* Am I paranoid or not ? ;-) */ #undef SX_PARANOIA_CHECK - /* 20 -> 2000 per second. The card should rate-limit interrupts at 100 Hz, but it is user configurable. I don't recommend going above 1000 Hz. The interrupt ratelimit might trigger if the interrupt is @@ -267,7 +265,6 @@ interrupt. Use polling. */ #undef IRQ_RATE_LIMIT - #if 0 /* Not implemented */ /* @@ -276,26 +273,24 @@ */ #define SX_REPORT_FIFO #define SX_REPORT_OVERRUN -#endif - +#endif /* Function prototypes */ -static void sx_disable_tx_interrupts (void * ptr); -static void sx_enable_tx_interrupts (void * ptr); -static void sx_disable_rx_interrupts (void * ptr); -static void sx_enable_rx_interrupts (void * ptr); -static int sx_get_CD (void * ptr); -static void sx_shutdown_port (void * ptr); -static int sx_set_real_termios (void *ptr); -static void sx_close (void *ptr); -static int sx_chars_in_buffer (void * ptr); -static int sx_init_board (struct sx_board *board); -static int sx_init_portstructs (int nboards, int nports); -static int sx_fw_ioctl (struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg); +static void sx_disable_tx_interrupts(void *ptr); +static void sx_enable_tx_interrupts(void *ptr); +static void sx_disable_rx_interrupts(void *ptr); +static void sx_enable_rx_interrupts(void *ptr); +static int sx_get_CD(void *ptr); +static void sx_shutdown_port(void *ptr); +static int sx_set_real_termios(void *ptr); +static void sx_close(void *ptr); +static int sx_chars_in_buffer(void *ptr); +static int sx_init_board(struct sx_board *board); +static int sx_init_portstructs(int nboards, int nports); +static int sx_fw_ioctl(struct inode *inode, struct file *filp, + unsigned int cmd, unsigned long arg); static int sx_init_drivers(void); - static struct tty_driver *sx_driver; static DEFINE_MUTEX(sx_boards_lock); @@ -305,7 +300,6 @@ static int sx_initialized; static int sx_nports; static int sx_debug; - /* You can have the driver poll your card. - Set sx_poll to 1 to poll every timer tick (10ms on Intel). This is used when the card cannot use an interrupt for some reason. @@ -330,11 +324,17 @@ static int sx_maxints = 100; or less.... -- REW duh: Card at 0xa0000 is possible on HP Netserver?? -- pvdl */ -static int sx_probe_addrs[]= {0xc0000, 0xd0000, 0xe0000, - 0xc8000, 0xd8000, 0xe8000}; -static int si_probe_addrs[]= {0xc0000, 0xd0000, 0xe0000, - 0xc8000, 0xd8000, 0xe8000, 0xa0000}; -static int si1_probe_addrs[]= { 0xd0000}; +static int sx_probe_addrs[] = { + 0xc0000, 0xd0000, 0xe0000, + 0xc8000, 0xd8000, 0xe8000 +}; +static int si_probe_addrs[] = { + 0xc0000, 0xd0000, 0xe0000, + 0xc8000, 0xd8000, 0xe8000, 0xa0000 +}; +static int si1_probe_addrs[] = { + 0xd0000 +}; #define NR_SX_ADDRS ARRAY_SIZE(sx_probe_addrs) #define NR_SI_ADDRS ARRAY_SIZE(si_probe_addrs) @@ -362,13 +362,12 @@ static struct real_driver sx_real_driver = { sx_disable_rx_interrupts, sx_enable_rx_interrupts, sx_get_CD, - sx_shutdown_port, - sx_set_real_termios, + sx_shutdown_port, + sx_set_real_termios, sx_chars_in_buffer, sx_close, }; - /* This driver can spew a whole lot of debugging output at you. If you need maximum performance, you should disable the DEBUG define. To @@ -379,23 +378,17 @@ static struct real_driver sx_real_driver = { */ #define DEBUG - #ifdef DEBUG -#define sx_dprintk(f, str...) if (sx_debug & f) printk (str) +#define sx_dprintk(f, str...) if (sx_debug & f) printk (str) #else -#define sx_dprintk(f, str...) /* nothing */ +#define sx_dprintk(f, str...) /* nothing */ #endif +#define func_enter() sx_dprintk(SX_DEBUG_FLOW, "sx: enter %s\n",__FUNCTION__) +#define func_exit() sx_dprintk(SX_DEBUG_FLOW, "sx: exit %s\n",__FUNCTION__) - -#define func_enter() sx_dprintk (SX_DEBUG_FLOW, "sx: enter %s\n",__FUNCTION__) -#define func_exit() sx_dprintk (SX_DEBUG_FLOW, "sx: exit %s\n", __FUNCTION__) - -#define func_enter2() sx_dprintk (SX_DEBUG_FLOW, "sx: enter %s (port %d)\n", \ - __FUNCTION__, port->line) - - - +#define func_enter2() sx_dprintk(SX_DEBUG_FLOW, "sx: enter %s (port %d)\n", \ + __FUNCTION__, port->line) /* * Firmware loader driver specific routines @@ -403,31 +396,26 @@ static struct real_driver sx_real_driver = { */ static const struct file_operations sx_fw_fops = { - .owner = THIS_MODULE, - .ioctl = sx_fw_ioctl, + .owner = THIS_MODULE, + .ioctl = sx_fw_ioctl, }; static struct miscdevice sx_fw_device = { SXCTL_MISC_MINOR, "sxctl", &sx_fw_fops }; - - - - #ifdef SX_PARANOIA_CHECK /* This doesn't work. Who's paranoid around here? Not me! */ -static inline int sx_paranoia_check(struct sx_port const * port, +static inline int sx_paranoia_check(struct sx_port const *port, char *name, const char *routine) { + static const char *badmagic = KERN_ERR "sx: Warning: bad sx port magic " + "number for device %s in %s\n"; + static const char *badinfo = KERN_ERR "sx: Warning: null sx port for " + "device %s in %s\n"; - static const char *badmagic = - KERN_ERR "sx: Warning: bad sx port magic number for device %s in %s\n"; - static const char *badinfo = - KERN_ERR "sx: Warning: null sx port for device %s in %s\n"; - if (!port) { printk(badinfo, name, routine); return 1; @@ -450,23 +438,24 @@ static inline int sx_paranoia_check(struct sx_port const * port, #define TIMEOUT_1 30 #define TIMEOUT_2 1000000 - #ifdef DEBUG static void my_hd_io(void __iomem *p, int len) { int i, j, ch; unsigned char __iomem *addr = p; - for (i=0;i<len;i+=16) { - printk ("%p ", addr+i); - for (j=0;j<16;j++) { - printk ("%02x %s", readb(addr+j+i), (j==7)?" ":""); + for (i = 0; i < len; i += 16) { + printk("%p ", addr + i); + for (j = 0; j < 16; j++) { + printk("%02x %s", readb(addr + j + i), + (j == 7) ? " " : ""); } - for (j=0;j<16;j++) { - ch = readb(addr+j+i); - printk ("%c", (ch < 0x20)?'.':((ch > 0x7f)?'.':ch)); + for (j = 0; j < 16; j++) { + ch = readb(addr + j + i); + printk("%c", (ch < 0x20) ? '.' : + ((ch > 0x7f) ? '.' : ch)); } - printk ("\n"); + printk("\n"); } } static void my_hd(void *p, int len) @@ -474,419 +463,468 @@ static void my_hd(void *p, int len) int i, j, ch; unsigned char *addr = p; - for (i=0;i<len;i+=16) { - printk ("%p ", addr+i); - for (j=0;j<16;j++) { - printk ("%02x %s", addr[j+i], (j==7)?" ":""); + for (i = 0; i < len; i += 16) { + printk("%p ", addr + i); + for (j = 0; j < 16; j++) { + printk("%02x %s", addr[j + i], (j == 7) ? " " : ""); } - for (j=0;j<16;j++) { - ch = addr[j+i]; - printk ("%c", (ch < 0x20)?'.':((ch > 0x7f)?'.':ch)); + for (j = 0; j < 16; j++) { + ch = addr[j + i]; + printk("%c", (ch < 0x20) ? '.' : + ((ch > 0x7f) ? '.' : ch)); } - printk ("\n"); + printk("\n"); } } #endif - - /* This needs redoing for Alpha -- REW -- Done. */ -static inline void write_sx_byte (struct sx_board *board, int offset, u8 byte) +static inline void write_sx_byte(struct sx_board *board, int offset, u8 byte) { - writeb (byte, board->base+offset); + writeb(byte, board->base + offset); } -static inline u8 read_sx_byte (struct sx_board *board, int offset) +static inline u8 read_sx_byte(struct sx_board *board, int offset) { - return readb (board->base+offset); + return readb(board->base + offset); } - -static inline void write_sx_word (struct sx_board *board, int offset, u16 word) +static inline void write_sx_word(struct sx_board *board, int offset, u16 word) { - writew (word, board->base+offset); + writew(word, board->base + offset); } -static inline u16 read_sx_word (struct sx_board *board, int offset) +static inline u16 read_sx_word(struct sx_board *board, int offset) { - return readw (board->base + offset); + return readw(board->base + offset); } - -static int sx_busy_wait_eq (struct sx_board *board, - int offset, int mask, int correctval) +static int sx_busy_wait_eq(struct sx_board *board, + int offset, int mask, int correctval) { int i; - func_enter (); + func_enter(); - for (i=0; i < TIMEOUT_1 ;i++) - if ((read_sx_byte (board, offset) & mask) == correctval) { - func_exit (); + for (i = 0; i < TIMEOUT_1; i++) + if ((read_sx_byte(board, offset) & mask) == correctval) { + func_exit(); return 1; } - for (i=0; i < TIMEOUT_2 ;i++) { - if ((read_sx_byte (board, offset) & mask) == correctval) { - func_exit (); + for (i = 0; i < TIMEOUT_2; i++) { + if ((read_sx_byte(board, offset) & mask) == correctval) { + func_exit(); return 1; } - udelay (1); + udelay(1); } - func_exit (); + func_exit(); return 0; } - -static int sx_busy_wait_neq (struct sx_board *board, - int offset, int mask, int badval) +static int sx_busy_wait_neq(struct sx_board *board, + int offset, int mask, int badval) { int i; - func_enter (); + func_enter(); - for (i=0; i < TIMEOUT_1 ;i++) - if ((read_sx_byte (board, offset) & mask) != badval) { - func_exit (); + for (i = 0; i < TIMEOUT_1; i++) + if ((read_sx_byte(board, offset) & mask) != badval) { + func_exit(); return 1; } - for (i=0; i < TIMEOUT_2 ;i++) { - if ((read_sx_byte (board, offset) & mask) != badval) { - func_exit (); + for (i = 0; i < TIMEOUT_2; i++) { + if ((read_sx_byte(board, offset) & mask) != badval) { + func_exit(); return 1; } - udelay (1); + udelay(1); } - func_exit (); + func_exit(); return 0; } - - /* 5.6.4 of 6210028 r2.3 */ -static int sx_reset (struct sx_board *board) +static int sx_reset(struct sx_board *board) { - func_enter (); + func_enter(); - if (IS_SX_BOARD (board)) { + if (IS_SX_BOARD(board)) { - write_sx_byte (board, SX_CONFIG, 0); - write_sx_byte (board, SX_RESET, 1); /* Value doesn't matter */ + write_sx_byte(board, SX_CONFIG, 0); + write_sx_byte(board, SX_RESET, 1); /* Value doesn't matter */ - if (!sx_busy_wait_eq (board, SX_RESET_STATUS, 1, 0)) { - printk (KERN_INFO "sx: Card doesn't respond to reset....\n"); + if (!sx_busy_wait_eq(board, SX_RESET_STATUS, 1, 0)) { + printk(KERN_INFO "sx: Card doesn't respond to " + "reset...\n"); return 0; } } else if (IS_EISA_BOARD(board)) { - outb(board->irq<<4, board->eisa_base+0xc02); + outb(board->irq << 4, board->eisa_base + 0xc02); } else if (IS_SI1_BOARD(board)) { - write_sx_byte (board, SI1_ISA_RESET, 0); // value does not matter + write_sx_byte(board, SI1_ISA_RESET, 0); /*value doesn't matter*/ } else { /* Gory details of the SI/ISA board */ - write_sx_byte (board, SI2_ISA_RESET, SI2_ISA_RESET_SET); - write_sx_byte (board, SI2_ISA_IRQ11, SI2_ISA_IRQ11_CLEAR); - write_sx_byte (board, SI2_ISA_IRQ12, SI2_ISA_IRQ12_CLEAR); - write_sx_byte (board, SI2_ISA_IRQ15, SI2_ISA_IRQ15_CLEAR); - write_sx_byte (board, SI2_ISA_INTCLEAR, SI2_ISA_INTCLEAR_CLEAR); - write_sx_byte (board, SI2_ISA_IRQSET, SI2_ISA_IRQSET_CLEAR); + write_sx_byte(board, SI2_ISA_RESET, SI2_ISA_RESET_SET); + write_sx_byte(board, SI2_ISA_IRQ11, SI2_ISA_IRQ11_CLEAR); + write_sx_byte(board, SI2_ISA_IRQ12, SI2_ISA_IRQ12_CLEAR); + write_sx_byte(board, SI2_ISA_IRQ15, SI2_ISA_IRQ15_CLEAR); + write_sx_byte(board, SI2_ISA_INTCLEAR, SI2_ISA_INTCLEAR_CLEAR); + write_sx_byte(board, SI2_ISA_IRQSET, SI2_ISA_IRQSET_CLEAR); } - func_exit (); + func_exit(); return 1; } - /* This doesn't work on machines where "NULL" isn't 0 */ /* If you have one of those, someone will need to write the equivalent of this, which will amount to about 3 lines. I don't want to complicate this right now. -- REW (See, I do write comments every now and then :-) */ -#define OFFSETOF(strct, elem) ((long)&(((struct strct *)NULL)->elem)) - - -#define CHAN_OFFSET(port,elem) (port->ch_base + OFFSETOF (_SXCHANNEL, elem)) -#define MODU_OFFSET(board,addr,elem) (addr + OFFSETOF (_SXMODULE, elem)) -#define BRD_OFFSET(board,elem) (OFFSETOF (_SXCARD, elem)) +#define OFFSETOF(strct, elem) ((long)&(((struct strct *)NULL)->elem)) +#define CHAN_OFFSET(port,elem) (port->ch_base + OFFSETOF (_SXCHANNEL, elem)) +#define MODU_OFFSET(board,addr,elem) (addr + OFFSETOF (_SXMODULE, elem)) +#define BRD_OFFSET(board,elem) (OFFSETOF (_SXCARD, elem)) #define sx_write_channel_byte(port, elem, val) \ - write_sx_byte (port->board, CHAN_OFFSET (port, elem), val) + write_sx_byte (port->board, CHAN_OFFSET (port, elem), val) #define sx_read_channel_byte(port, elem) \ - read_sx_byte (port->board, CHAN_OFFSET (port, elem)) + read_sx_byte (port->board, CHAN_OFFSET (port, elem)) #define sx_write_channel_word(port, elem, val) \ - write_sx_word (port->board, CHAN_OFFSET (port, elem), val) + write_sx_word (port->board, CHAN_OFFSET (port, elem), val) #define sx_read_channel_word(port, elem) \ - read_sx_word (port->board, CHAN_OFFSET (port, elem)) - + read_sx_word (port->board, CHAN_OFFSET (port, elem)) #define sx_write_module_byte(board, addr, elem, val) \ - write_sx_byte (board, MODU_OFFSET (board, addr, elem), val) + write_sx_byte (board, MODU_OFFSET (board, addr, elem), val) #define sx_read_module_byte(board, addr, elem) \ - read_sx_byte (board, MODU_OFFSET (board, addr, elem)) + read_sx_byte (board, MODU_OFFSET (board, addr, elem)) #define sx_write_module_word(board, addr, elem, val) \ - write_sx_word (board, MODU_OFFSET (board, addr, elem), val) + write_sx_word (board, MODU_OFFSET (board, addr, elem), val) #define sx_read_module_word(board, addr, elem) \ - read_sx_word (board, MODU_OFFSET (board, addr, elem)) - + read_sx_word (board, MODU_OFFSET (board, addr, elem)) #define sx_write_board_byte(board, elem, val) \ - write_sx_byte (board, BRD_OFFSET (board, elem), val) + write_sx_byte (board, BRD_OFFSET (board, elem), val) #define sx_read_board_byte(board, elem) \ - read_sx_byte (board, BRD_OFFSET (board, elem)) + read_sx_byte (board, BRD_OFFSET (board, elem)) #define sx_write_board_word(board, elem, val) \ - write_sx_word (board, BRD_OFFSET (board, elem), val) + write_sx_word (board, BRD_OFFSET (board, elem), val) #define sx_read_board_word(board, elem) \ - read_sx_word (board, BRD_OFFSET (board, elem)) - + read_sx_word (board, BRD_OFFSET (board, elem)) -static int sx_start_board (struct sx_board *board) +static int sx_start_board(struct sx_board *board) { - if (IS_SX_BOARD (board)) { - write_sx_byte (board, SX_CONFIG, SX_CONF_BUSEN); + if (IS_SX_BOARD(board)) { + write_sx_byte(board, SX_CONFIG, SX_CONF_BUSEN); } else if (IS_EISA_BOARD(board)) { write_sx_byte(board, SI2_EISA_OFF, SI2_EISA_VAL); - outb((board->irq<<4)|4, board->eisa_base+0xc02); + outb((board->irq << 4) | 4, board->eisa_base + 0xc02); } else if (IS_SI1_BOARD(board)) { - write_sx_byte (board, SI1_ISA_RESET_CLEAR, 0); - write_sx_byte (board, SI1_ISA_INTCL, 0); + write_sx_byte(board, SI1_ISA_RESET_CLEAR, 0); + write_sx_byte(board, SI1_ISA_INTCL, 0); } else { /* Don't bug me about the clear_set. I haven't the foggiest idea what it's about -- REW */ - write_sx_byte (board, SI2_ISA_RESET, SI2_ISA_RESET_CLEAR); - write_sx_byte (board, SI2_ISA_INTCLEAR, SI2_ISA_INTCLEAR_SET); + write_sx_byte(board, SI2_ISA_RESET, SI2_ISA_RESET_CLEAR); + write_sx_byte(board, SI2_ISA_INTCLEAR, SI2_ISA_INTCLEAR_SET); } return 1; } #define SX_IRQ_REG_VAL(board) \ - ((board->flags & SX_ISA_BOARD)?(board->irq << 4):0) + ((board->flags & SX_ISA_BOARD) ? (board->irq << 4) : 0) /* Note. The SX register is write-only. Therefore, we have to enable the bus too. This is a no-op, if you don't mess with this driver... */ -static int sx_start_interrupts (struct sx_board *board) +static int sx_start_interrupts(struct sx_board *board) { /* Don't call this with board->irq == 0 */ if (IS_SX_BOARD(board)) { - write_sx_byte (board, SX_CONFIG, SX_IRQ_REG_VAL (board) | - SX_CONF_BUSEN | - SX_CONF_HOSTIRQ); + write_sx_byte(board, SX_CONFIG, SX_IRQ_REG_VAL(board) | + SX_CONF_BUSEN | SX_CONF_HOSTIRQ); } else if (IS_EISA_BOARD(board)) { - inb(board->eisa_base+0xc03); + inb(board->eisa_base + 0xc03); } else if (IS_SI1_BOARD(board)) { - write_sx_byte (board, SI1_ISA_INTCL,0); - write_sx_byte (board, SI1_ISA_INTCL_CLEAR,0); + write_sx_byte(board, SI1_ISA_INTCL, 0); + write_sx_byte(board, SI1_ISA_INTCL_CLEAR, 0); } else { switch (board->irq) { - case 11:write_sx_byte (board, SI2_ISA_IRQ11, SI2_ISA_IRQ11_SET);break; - case 12:write_sx_byte (board, SI2_ISA_IRQ12, SI2_ISA_IRQ12_SET);break; - case 15:write_sx_byte (board, SI2_ISA_IRQ15, SI2_ISA_IRQ15_SET);break; - default:printk (KERN_INFO "sx: SI/XIO card doesn't support interrupt %d.\n", - board->irq); - return 0; + case 11: + write_sx_byte(board, SI2_ISA_IRQ11, SI2_ISA_IRQ11_SET); + break; + case 12: + write_sx_byte(board, SI2_ISA_IRQ12, SI2_ISA_IRQ12_SET); + break; + case 15: + write_sx_byte(board, SI2_ISA_IRQ15, SI2_ISA_IRQ15_SET); + break; + default: + printk(KERN_INFO "sx: SI/XIO card doesn't support " + "interrupt %d.\n", board->irq); + return 0; } - write_sx_byte (board, SI2_ISA_INTCLEAR, SI2_ISA_INTCLEAR_SET); + write_sx_byte(board, SI2_ISA_INTCLEAR, SI2_ISA_INTCLEAR_SET); } return 1; } - -static int sx_send_command (struct sx_port *port, - int command, int mask, int newstat) +static int sx_send_command(struct sx_port *port, + int command, int mask, int newstat) { - func_enter2 (); - write_sx_byte (port->board, CHAN_OFFSET (port, hi_hstat), command); - func_exit (); - return sx_busy_wait_eq (port->board, CHAN_OFFSET (port, hi_hstat), mask, newstat); + func_enter2(); + write_sx_byte(port->board, CHAN_OFFSET(port, hi_hstat), command); + func_exit(); + return sx_busy_wait_eq(port->board, CHAN_OFFSET(port, hi_hstat), mask, + newstat); } - -static char *mod_type_s (int module_type) +static char *mod_type_s(int module_type) { switch (module_type) { - case TA4: return "TA4"; - case TA8: return "TA8"; - case TA4_ASIC: return "TA4_ASIC"; - case TA8_ASIC: return "TA8_ASIC"; - case MTA_CD1400:return "MTA_CD1400"; - case SXDC: return "SXDC"; - default:return "Unknown/invalid"; + case TA4: + return "TA4"; + case TA8: + return "TA8"; + case TA4_ASIC: + return "TA4_ASIC"; + case TA8_ASIC: + return "TA8_ASIC"; + case MTA_CD1400: + return "MTA_CD1400"; + case SXDC: + return "SXDC"; + default: + return "Unknown/invalid"; } } - -static char *pan_type_s (int pan_type) +static char *pan_type_s(int pan_type) { switch (pan_type) { - case MOD_RS232DB25: return "MOD_RS232DB25"; - case MOD_RS232RJ45: return "MOD_RS232RJ45"; - case MOD_RS422DB25: return "MOD_RS422DB25"; - case MOD_PARALLEL: return "MOD_PARALLEL"; - case MOD_2_RS232DB25: return "MOD_2_RS232DB25"; - case MOD_2_RS232RJ45: return "MOD_2_RS232RJ45"; - case MOD_2_RS422DB25: return "MOD_2_RS422DB25"; - case MOD_RS232DB25MALE: return "MOD_RS232DB25MALE"; - case MOD_2_PARALLEL: return "MOD_2_PARALLEL"; - case MOD_BLANK: return "empty"; - default:return "invalid"; + case MOD_RS232DB25: + return "MOD_RS232DB25"; + case MOD_RS232RJ45: + return "MOD_RS232RJ45"; + case MOD_RS422DB25: + return "MOD_RS422DB25"; + case MOD_PARALLEL: + return "MOD_PARALLEL"; + case MOD_2_RS232DB25: + return "MOD_2_RS232DB25"; + case MOD_2_RS232RJ45: + return "MOD_2_RS232RJ45"; + case MOD_2_RS422DB25: + return "MOD_2_RS422DB25"; + case MOD_RS232DB25MALE: + return "MOD_RS232DB25MALE"; + case MOD_2_PARALLEL: + return "MOD_2_PARALLEL"; + case MOD_BLANK: + return "empty"; + default: + return "invalid"; } } - -static int mod_compat_type (int module_type) +static int mod_compat_type(int module_type) { return module_type >> 4; } static void sx_reconfigure_port(struct sx_port *port) { - if (sx_read_channel_byte (port, hi_hstat) == HS_IDLE_OPEN) { - if (sx_send_command (port, HS_CONFIG, -1, HS_IDLE_OPEN) != 1) { - printk (KERN_WARNING "sx: Sent reconfigure command, but card didn't react.\n"); + if (sx_read_channel_byte(port, hi_hstat) == HS_IDLE_OPEN) { + if (sx_send_command(port, HS_CONFIG, -1, HS_IDLE_OPEN) != 1) { + printk(KERN_WARNING "sx: Sent reconfigure command, but " + "card didn't react.\n"); } } else { - sx_dprintk (SX_DEBUG_TERMIOS, - "sx: Not sending reconfigure: port isn't open (%02x).\n", - sx_read_channel_byte (port, hi_hstat)); - } + sx_dprintk(SX_DEBUG_TERMIOS, "sx: Not sending reconfigure: " + "port isn't open (%02x).\n", + sx_read_channel_byte(port, hi_hstat)); + } } -static void sx_setsignals (struct sx_port *port, int dtr, int rts) +static void sx_setsignals(struct sx_port *port, int dtr, int rts) { int t; - func_enter2 (); + func_enter2(); - t = sx_read_channel_byte (port, hi_op); - if (dtr >= 0) t = dtr? (t | OP_DTR): (t & ~OP_DTR); - if (rts >= 0) t = rts? (t | OP_RTS): (t & ~OP_RTS); - sx_write_channel_byte (port, hi_op, t); - sx_dprintk (SX_DEBUG_MODEMSIGNALS, "setsignals: %d/%d\n", dtr, rts); + t = sx_read_channel_byte(port, hi_op); + if (dtr >= 0) + t = dtr ? (t | OP_DTR) : (t & ~OP_DTR); + if (rts >= 0) + t = rts ? (t | OP_RTS) : (t & ~OP_RTS); + sx_write_channel_byte(port, hi_op, t); + sx_dprintk(SX_DEBUG_MODEMSIGNALS, "setsignals: %d/%d\n", dtr, rts); - func_exit (); + func_exit(); } - - -static int sx_getsignals (struct sx_port *port) +static int sx_getsignals(struct sx_port *port) { - int i_stat,o_stat; - - o_stat = sx_read_channel_byte (port, hi_op); - i_stat = sx_read_channel_byte (port, hi_ip); - - sx_dprintk (SX_DEBUG_MODEMSIGNALS, "getsignals: %d/%d (%d/%d) %02x/%02x\n", - (o_stat & OP_DTR) != 0, (o_stat & OP_RTS) != 0, - port->c_dcd, sx_get_CD (port), - sx_read_channel_byte (port, hi_ip), - sx_read_channel_byte (port, hi_state)); - - return (((o_stat & OP_DTR)?TIOCM_DTR:0) | - ((o_stat & OP_RTS)?TIOCM_RTS:0) | - ((i_stat & IP_CTS)?TIOCM_CTS:0) | - ((i_stat & IP_DCD)?TIOCM_CAR:0) | - ((i_stat & IP_DSR)?TIOCM_DSR:0) | - ((i_stat & IP_RI)?TIOCM_RNG:0) - ); + int i_stat, o_stat; + + o_stat = sx_read_channel_byte(port, hi_op); + i_stat = sx_read_channel_byte(port, hi_ip); + + sx_dprintk(SX_DEBUG_MODEMSIGNALS, "getsignals: %d/%d (%d/%d) " + "%02x/%02x\n", + (o_stat & OP_DTR) != 0, (o_stat & OP_RTS) != 0, + port->c_dcd, sx_get_CD(port), + sx_read_channel_byte(port, hi_ip), + sx_read_channel_byte(port, hi_state)); + + return (((o_stat & OP_DTR) ? TIOCM_DTR : 0) | + ((o_stat & OP_RTS) ? TIOCM_RTS : 0) | + ((i_stat & IP_CTS) ? TIOCM_CTS : 0) | + ((i_stat & IP_DCD) ? TIOCM_CAR : 0) | + ((i_stat & IP_DSR) ? TIOCM_DSR : 0) | + ((i_stat & IP_RI) ? TIOCM_RNG : 0)); } - -static void sx_set_baud (struct sx_port *port) +static void sx_set_baud(struct sx_port *port) { int t; if (port->board->ta_type == MOD_SXDC) { switch (port->gs.baud) { - /* Save some typing work... */ -#define e(x) case x:t= BAUD_ ## x ; break - e(50);e(75);e(110);e(150);e(200);e(300);e(600); - e(1200);e(1800);e(2000);e(2400);e(4800);e(7200); - e(9600);e(14400);e(19200);e(28800);e(38400); - e(56000);e(57600);e(64000);e(76800);e(115200); - e(128000);e(150000);e(230400);e(256000);e(460800); - e(921600); - case 134 :t = BAUD_134_5; break; - case 0 :t = -1; - break; + /* Save some typing work... */ +#define e(x) case x: t = BAUD_ ## x; break + e(50); + e(75); + e(110); + e(150); + e(200); + e(300); + e(600); + e(1200); + e(1800); + e(2000); + e(2400); + e(4800); + e(7200); + e(9600); + e(14400); + e(19200); + e(28800); + e(38400); + e(56000); + e(57600); + e(64000); + e(76800); + e(115200); + e(128000); + e(150000); + e(230400); + e(256000); + e(460800); + e(921600); + case 134: + t = BAUD_134_5; + break; + case 0: + t = -1; + break; default: /* Can I return "invalid"? */ t = BAUD_9600; - printk (KERN_INFO "sx: unsupported baud rate: %d.\n", port->gs.baud); + printk(KERN_INFO "sx: unsupported baud rate: %d.\n", + port->gs.baud); break; } #undef e if (t > 0) { - /* The baud rate is not set to 0, so we're enabeling DTR... -- REW */ - sx_setsignals (port, 1, -1); +/* The baud rate is not set to 0, so we're enabeling DTR... -- REW */ + sx_setsignals(port, 1, -1); /* XXX This is not TA & MTA compatible */ - sx_write_channel_byte (port, hi_csr, 0xff); + sx_write_channel_byte(port, hi_csr, 0xff); - sx_write_channel_byte (port, hi_txbaud, t); - sx_write_channel_byte (port, hi_rxbaud, t); + sx_write_channel_byte(port, hi_txbaud, t); + sx_write_channel_byte(port, hi_rxbaud, t); } else { - sx_setsignals (port, 0, -1); + sx_setsignals(port, 0, -1); } } else { switch (port->gs.baud) { -#define e(x) case x:t= CSR_ ## x ; break - e(75);e(150);e(300);e(600);e(1200);e(2400);e(4800); - e(1800);e(9600); - e(19200);e(57600);e(38400); - /* TA supports 110, but not 115200, MTA supports 115200, but not 110 */ - case 110: +#define e(x) case x: t = CSR_ ## x; break + e(75); + e(150); + e(300); + e(600); + e(1200); + e(2400); + e(4800); + e(1800); + e(9600); + e(19200); + e(57600); + e(38400); +/* TA supports 110, but not 115200, MTA supports 115200, but not 110 */ + case 110: if (port->board->ta_type == MOD_TA) { t = CSR_110; break; } else { t = CSR_9600; - printk (KERN_INFO "sx: Unsupported baud rate: %d.\n", port->gs.baud); + printk(KERN_INFO "sx: Unsupported baud rate: " + "%d.\n", port->gs.baud); break; } - case 115200: + case 115200: if (port->board->ta_type == MOD_TA) { t = CSR_9600; - printk (KERN_INFO "sx: Unsupported baud rate: %d.\n", port->gs.baud); + printk(KERN_INFO "sx: Unsupported baud rate: " + "%d.\n", port->gs.baud); break; } else { t = CSR_110; break; } - case 0 :t = -1; - break; + case 0: + t = -1; + break; default: t = CSR_9600; - printk (KERN_INFO "sx: Unsupported baud rate: %d.\n", port->gs.baud); + printk(KERN_INFO "sx: Unsupported baud rate: %d.\n", + port->gs.baud); break; } #undef e if (t >= 0) { - sx_setsignals (port, 1, -1); - sx_write_channel_byte (port, hi_csr, t * 0x11); + sx_setsignals(port, 1, -1); + sx_write_channel_byte(port, hi_csr, t * 0x11); } else { - sx_setsignals (port, 0, -1); + sx_setsignals(port, 0, -1); } } } - /* Simon Allen's version of this routine was 225 lines long. 85 is a lot better. -- REW */ -static int sx_set_real_termios (void *ptr) +static int sx_set_real_termios(void *ptr) { struct sx_port *port = ptr; @@ -901,80 +939,83 @@ static int sx_set_real_termios (void *ptr) belongs (next to the drop dtr if baud == 0) -- REW */ /* sx_setsignals (port, 1, -1); */ - sx_set_baud (port); + sx_set_baud(port); #define CFLAG port->gs.tty->termios->c_cflag - sx_write_channel_byte (port, hi_mr1, - (C_PARENB (port->gs.tty)? MR1_WITH:MR1_NONE) | - (C_PARODD (port->gs.tty)? MR1_ODD:MR1_EVEN) | - (C_CRTSCTS(port->gs.tty)? MR1_RTS_RXFLOW:0) | - (((CFLAG & CSIZE)==CS8) ? MR1_8_BITS:0) | - (((CFLAG & CSIZE)==CS7) ? MR1_7_BITS:0) | - (((CFLAG & CSIZE)==CS6) ? MR1_6_BITS:0) | - (((CFLAG & CSIZE)==CS5) ? MR1_5_BITS:0) ); - - sx_write_channel_byte (port, hi_mr2, - (C_CRTSCTS(port->gs.tty)?MR2_CTS_TXFLOW:0) | - (C_CSTOPB (port->gs.tty)?MR2_2_STOP:MR2_1_STOP)); + sx_write_channel_byte(port, hi_mr1, + (C_PARENB(port->gs.tty) ? MR1_WITH : MR1_NONE) | + (C_PARODD(port->gs.tty) ? MR1_ODD : MR1_EVEN) | + (C_CRTSCTS(port->gs.tty) ? MR1_RTS_RXFLOW : 0) | + (((CFLAG & CSIZE) == CS8) ? MR1_8_BITS : 0) | + (((CFLAG & CSIZE) == CS7) ? MR1_7_BITS : 0) | + (((CFLAG & CSIZE) == CS6) ? MR1_6_BITS : 0) | + (((CFLAG & CSIZE) == CS5) ? MR1_5_BITS : 0)); + + sx_write_channel_byte(port, hi_mr2, + (C_CRTSCTS(port->gs.tty) ? MR2_CTS_TXFLOW : 0) | + (C_CSTOPB(port->gs.tty) ? MR2_2_STOP : + MR2_1_STOP)); switch (CFLAG & CSIZE) { - case CS8:sx_write_channel_byte (port, hi_mask, 0xff);break; - case CS7:sx_write_channel_byte (port, hi_mask, 0x7f);break; - case CS6:sx_write_channel_byte (port, hi_mask, 0x3f);break; - case CS5:sx_write_channel_byte (port, hi_mask, 0x1f);break; + case CS8: + sx_write_channel_byte(port, hi_mask, 0xff); + break; + case CS7: + sx_write_channel_byte(port, hi_mask, 0x7f); + break; + case CS6: + sx_write_channel_byte(port, hi_mask, 0x3f); + break; + case CS5: + sx_write_channel_byte(port, hi_mask, 0x1f); + break; default: - printk (KERN_INFO "sx: Invalid wordsize: %u\n", CFLAG & CSIZE); + printk(KERN_INFO "sx: Invalid wordsize: %u\n", CFLAG & CSIZE); break; } - sx_write_channel_byte (port, hi_prtcl, - (I_IXON (port->gs.tty)?SP_TXEN:0) | - (I_IXOFF (port->gs.tty)?SP_RXEN:0) | - (I_IXANY (port->gs.tty)?SP_TANY:0) | - SP_DCEN); + sx_write_channel_byte(port, hi_prtcl, + (I_IXON(port->gs.tty) ? SP_TXEN : 0) | + (I_IXOFF(port->gs.tty) ? SP_RXEN : 0) | + (I_IXANY(port->gs.tty) ? SP_TANY : 0) | SP_DCEN); - sx_write_channel_byte (port, hi_break, - (I_IGNBRK(port->gs.tty)?BR_IGN:0 | - I_BRKINT(port->gs.tty)?BR_INT:0)); + sx_write_channel_byte(port, hi_break, + (I_IGNBRK(port->gs.tty) ? BR_IGN : 0 | + I_BRKINT(port->gs.tty) ? BR_INT : 0)); - sx_write_channel_byte (port, hi_txon, START_CHAR (port->gs.tty)); - sx_write_channel_byte (port, hi_rxon, START_CHAR (port->gs.tty)); - sx_write_channel_byte (port, hi_txoff, STOP_CHAR (port->gs.tty)); - sx_write_channel_byte (port, hi_rxoff, STOP_CHAR (port->gs.tty)); + sx_write_channel_byte(port, hi_txon, START_CHAR(port->gs.tty)); + sx_write_channel_byte(port, hi_rxon, START_CHAR(port->gs.tty)); + sx_write_channel_byte(port, hi_txoff, STOP_CHAR(port->gs.tty)); + sx_write_channel_byte(port, hi_rxoff, STOP_CHAR(port->gs.tty)); sx_reconfigure_port(port); /* Tell line discipline whether we will do input cooking */ - if(I_OTHER(port->gs.tty)) { + if (I_OTHER(port->gs.tty)) { clear_bit(TTY_HW_COOK_IN, &port->gs.tty->flags); } else { set_bit(TTY_HW_COOK_IN, &port->gs.tty->flags); } - sx_dprintk (SX_DEBUG_TERMIOS, "iflags: %x(%d) ", - port->gs.tty->termios->c_iflag, - I_OTHER(port->gs.tty)); - + sx_dprintk(SX_DEBUG_TERMIOS, "iflags: %x(%d) ", + port->gs.tty->termios->c_iflag, I_OTHER(port->gs.tty)); /* Tell line discipline whether we will do output cooking. * If OPOST is set and no other output flags are set then we can do output * processing. Even if only *one* other flag in the O_OTHER group is set * we do cooking in software. */ - if(O_OPOST(port->gs.tty) && !O_OTHER(port->gs.tty)) { + if (O_OPOST(port->gs.tty) && !O_OTHER(port->gs.tty)) { set_bit(TTY_HW_COOK_OUT, &port->gs.tty->flags); } else { clear_bit(TTY_HW_COOK_OUT, &port->gs.tty->flags); } - sx_dprintk (SX_DEBUG_TERMIOS, "oflags: %x(%d)\n", - port->gs.tty->termios->c_oflag, - O_OTHER(port->gs.tty)); + sx_dprintk(SX_DEBUG_TERMIOS, "oflags: %x(%d)\n", + port->gs.tty->termios->c_oflag, O_OTHER(port->gs.tty)); /* port->c_dcd = sx_get_CD (port); */ - func_exit (); + func_exit(); return 0; } - - /* ********************************************************************** * * the interrupt related routines * * ********************************************************************** */ @@ -990,245 +1031,260 @@ static int sx_set_real_termios (void *ptr) know I'm dead against that, but I think it is required in this case. */ - -static void sx_transmit_chars (struct sx_port *port) +static void sx_transmit_chars(struct sx_port *port) { int c; int tx_ip; int txroom; - func_enter2 (); - sx_dprintk (SX_DEBUG_TRANSMIT, "Port %p: transmit %d chars\n", - port, port->gs.xmit_cnt); + func_enter2(); + sx_dprintk(SX_DEBUG_TRANSMIT, "Port %p: transmit %d chars\n", + port, port->gs.xmit_cnt); - if (test_and_set_bit (SX_PORT_TRANSMIT_LOCK, &port->locks)) { + if (test_and_set_bit(SX_PORT_TRANSMIT_LOCK, &port->locks)) { return; } while (1) { c = port->gs.xmit_cnt; - sx_dprintk (SX_DEBUG_TRANSMIT, "Copying %d ", c); - tx_ip = sx_read_channel_byte (port, hi_txipos); + sx_dprintk(SX_DEBUG_TRANSMIT, "Copying %d ", c); + tx_ip = sx_read_channel_byte(port, hi_txipos); /* Took me 5 minutes to deduce this formula. Luckily it is literally in the manual in section 6.5.4.3.5 */ - txroom = (sx_read_channel_byte (port, hi_txopos) - tx_ip - 1) & 0xff; + txroom = (sx_read_channel_byte(port, hi_txopos) - tx_ip - 1) & + 0xff; /* Don't copy more bytes than there is room for in the buffer */ if (c > txroom) c = txroom; - sx_dprintk (SX_DEBUG_TRANSMIT, " %d(%d) ", c, txroom ); + sx_dprintk(SX_DEBUG_TRANSMIT, " %d(%d) ", c, txroom); /* Don't copy past the end of the hardware transmit buffer */ - if (c > 0x100 - tx_ip) + if (c > 0x100 - tx_ip) c = 0x100 - tx_ip; - sx_dprintk (SX_DEBUG_TRANSMIT, " %d(%d) ", c, 0x100-tx_ip ); + sx_dprintk(SX_DEBUG_TRANSMIT, " %d(%d) ", c, 0x100 - tx_ip); /* Don't copy pas the end of the source buffer */ - if (c > SERIAL_XMIT_SIZE - port->gs.xmit_tail) + if (c > SERIAL_XMIT_SIZE - port->gs.xmit_tail) c = SERIAL_XMIT_SIZE - port->gs.xmit_tail; - sx_dprintk (SX_DEBUG_TRANSMIT, " %d(%ld) \n", - c, SERIAL_XMIT_SIZE- port->gs.xmit_tail); - - /* If for one reason or another, we can't copy more data, we're done! */ - if (c == 0) break; + sx_dprintk(SX_DEBUG_TRANSMIT, " %d(%ld) \n", + c, SERIAL_XMIT_SIZE - port->gs.xmit_tail); + /* If for one reason or another, we can't copy more data, we're + done! */ + if (c == 0) + break; - memcpy_toio (port->board->base + CHAN_OFFSET(port,hi_txbuf) + tx_ip, - port->gs.xmit_buf + port->gs.xmit_tail, c); + memcpy_toio(port->board->base + CHAN_OFFSET(port, hi_txbuf) + + tx_ip, port->gs.xmit_buf + port->gs.xmit_tail, c); /* Update the pointer in the card */ - sx_write_channel_byte (port, hi_txipos, (tx_ip+c) & 0xff); + sx_write_channel_byte(port, hi_txipos, (tx_ip + c) & 0xff); /* Update the kernel buffer end */ - port->gs.xmit_tail = (port->gs.xmit_tail + c) & (SERIAL_XMIT_SIZE-1); + port->gs.xmit_tail = (port->gs.xmit_tail + c) & + (SERIAL_XMIT_SIZE - 1); /* This one last. (this is essential) - It would allow others to start putting more data into the buffer! */ + It would allow others to start putting more data into the + buffer! */ port->gs.xmit_cnt -= c; } if (port->gs.xmit_cnt == 0) { - sx_disable_tx_interrupts (port); + sx_disable_tx_interrupts(port); } if ((port->gs.xmit_cnt <= port->gs.wakeup_chars) && port->gs.tty) { tty_wakeup(port->gs.tty); - sx_dprintk (SX_DEBUG_TRANSMIT, "Waking up.... ldisc (%d)....\n", - port->gs.wakeup_chars); + sx_dprintk(SX_DEBUG_TRANSMIT, "Waking up.... ldisc (%d)....\n", + port->gs.wakeup_chars); } - clear_bit (SX_PORT_TRANSMIT_LOCK, &port->locks); - func_exit (); + clear_bit(SX_PORT_TRANSMIT_LOCK, &port->locks); + func_exit(); } - /* Note the symmetry between receiving chars and transmitting them! Note: The kernel should have implemented both a receive buffer and a transmit buffer. */ /* Inlined: Called only once. Remove the inline when you add another call */ -static inline void sx_receive_chars (struct sx_port *port) +static inline void sx_receive_chars(struct sx_port *port) { int c; int rx_op; struct tty_struct *tty; - int copied=0; + int copied = 0; unsigned char *rp; - func_enter2 (); + func_enter2(); tty = port->gs.tty; while (1) { - rx_op = sx_read_channel_byte (port, hi_rxopos); - c = (sx_read_channel_byte (port, hi_rxipos) - rx_op) & 0xff; + rx_op = sx_read_channel_byte(port, hi_rxopos); + c = (sx_read_channel_byte(port, hi_rxipos) - rx_op) & 0xff; - sx_dprintk (SX_DEBUG_RECEIVE, "rxop=%d, c = %d.\n", rx_op, c); + sx_dprintk(SX_DEBUG_RECEIVE, "rxop=%d, c = %d.\n", rx_op, c); /* Don't copy past the end of the hardware receive buffer */ - if (rx_op + c > 0x100) c = 0x100 - rx_op; + if (rx_op + c > 0x100) + c = 0x100 - rx_op; - sx_dprintk (SX_DEBUG_RECEIVE, "c = %d.\n", c); + sx_dprintk(SX_DEBUG_RECEIVE, "c = %d.\n", c); /* Don't copy more bytes than there is room for in the buffer */ c = tty_prepare_flip_string(tty, &rp, c); - sx_dprintk (SX_DEBUG_RECEIVE, "c = %d.\n", c); + sx_dprintk(SX_DEBUG_RECEIVE, "c = %d.\n", c); /* If for one reason or another, we can't copy more data, we're done! */ - if (c == 0) break; + if (c == 0) + break; - sx_dprintk (SX_DEBUG_RECEIVE , "Copying over %d chars. First is %d at %lx\n", c, - read_sx_byte (port->board, CHAN_OFFSET(port,hi_rxbuf) + rx_op), - CHAN_OFFSET(port, hi_rxbuf)); - memcpy_fromio (rp, - port->board->base + CHAN_OFFSET(port,hi_rxbuf) + rx_op, c); + sx_dprintk(SX_DEBUG_RECEIVE, "Copying over %d chars. First is " + "%d at %lx\n", c, read_sx_byte(port->board, + CHAN_OFFSET(port, hi_rxbuf) + rx_op), + CHAN_OFFSET(port, hi_rxbuf)); + memcpy_fromio(rp, port->board->base + + CHAN_OFFSET(port, hi_rxbuf) + rx_op, c); /* This one last. ( Not essential.) - It allows the card to start putting more data into the buffer! + It allows the card to start putting more data into the + buffer! Update the pointer in the card */ - sx_write_channel_byte (port, hi_rxopos, (rx_op + c) & 0xff); + sx_write_channel_byte(port, hi_rxopos, (rx_op + c) & 0xff); copied += c; } if (copied) { struct timeval tv; - do_gettimeofday (&tv); - sx_dprintk (SX_DEBUG_RECEIVE, - "pushing flipq port %d (%3d chars): %d.%06d (%d/%d)\n", - port->line, copied, - (int) (tv.tv_sec % 60), (int)tv.tv_usec, tty->raw, tty->real_raw); + do_gettimeofday(&tv); + sx_dprintk(SX_DEBUG_RECEIVE, "pushing flipq port %d (%3d " + "chars): %d.%06d (%d/%d)\n", port->line, + copied, (int)(tv.tv_sec % 60), (int)tv.tv_usec, + tty->raw, tty->real_raw); - /* Tell the rest of the system the news. Great news. New characters! */ - tty_flip_buffer_push (tty); + /* Tell the rest of the system the news. Great news. New + characters! */ + tty_flip_buffer_push(tty); /* tty_schedule_flip (tty); */ } - func_exit (); + func_exit(); } /* Inlined: it is called only once. Remove the inline if you add another call */ -static inline void sx_check_modem_signals (struct sx_port *port) +static inline void sx_check_modem_signals(struct sx_port *port) { int hi_state; int c_dcd; - hi_state = sx_read_channel_byte (port, hi_state); - sx_dprintk (SX_DEBUG_MODEMSIGNALS, "Checking modem signals (%d/%d)\n", - port->c_dcd, sx_get_CD (port)); + hi_state = sx_read_channel_byte(port, hi_state); + sx_dprintk(SX_DEBUG_MODEMSIGNALS, "Checking modem signals (%d/%d)\n", + port->c_dcd, sx_get_CD(port)); if (hi_state & ST_BREAK) { hi_state &= ~ST_BREAK; - sx_dprintk (SX_DEBUG_MODEMSIGNALS, "got a break.\n"); - sx_write_channel_byte (port, hi_state, hi_state); - gs_got_break (&port->gs); + sx_dprintk(SX_DEBUG_MODEMSIGNALS, "got a break.\n"); + sx_write_channel_byte(port, hi_state, hi_state); + gs_got_break(&port->gs); } if (hi_state & ST_DCD) { hi_state &= ~ST_DCD; - sx_dprintk (SX_DEBUG_MODEMSIGNALS, "got a DCD change.\n"); - sx_write_channel_byte (port, hi_state, hi_state); - c_dcd = sx_get_CD (port); - sx_dprintk (SX_DEBUG_MODEMSIGNALS, "DCD is now %d\n", c_dcd); + sx_dprintk(SX_DEBUG_MODEMSIGNALS, "got a DCD change.\n"); + sx_write_channel_byte(port, hi_state, hi_state); + c_dcd = sx_get_CD(port); + sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD is now %d\n", c_dcd); if (c_dcd != port->c_dcd) { port->c_dcd = c_dcd; - if (sx_get_CD (port)) { + if (sx_get_CD(port)) { /* DCD went UP */ - if ((sx_read_channel_byte(port, hi_hstat) != HS_IDLE_CLOSED) && - !(port->gs.tty->termios->c_cflag & CLOCAL) ) { - /* Are we blocking in open?*/ - sx_dprintk (SX_DEBUG_MODEMSIGNALS, "DCD active, unblocking open\n"); - wake_up_interruptible(&port->gs.open_wait); + if ((sx_read_channel_byte(port, hi_hstat) != + HS_IDLE_CLOSED) && + !(port->gs.tty->termios-> + c_cflag & CLOCAL)) { + /* Are we blocking in open? */ + sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD " + "active, unblocking open\n"); + wake_up_interruptible(&port->gs. + open_wait); } else { - sx_dprintk (SX_DEBUG_MODEMSIGNALS, "DCD raised. Ignoring.\n"); + sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD " + "raised. Ignoring.\n"); } } else { /* DCD went down! */ - if (!(port->gs.tty->termios->c_cflag & CLOCAL) ) { - sx_dprintk (SX_DEBUG_MODEMSIGNALS, "DCD dropped. hanging up....\n"); - tty_hangup (port->gs.tty); + if (!(port->gs.tty->termios->c_cflag & CLOCAL)){ + sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD " + "dropped. hanging up....\n"); + tty_hangup(port->gs.tty); } else { - sx_dprintk (SX_DEBUG_MODEMSIGNALS, "DCD dropped. ignoring.\n"); + sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD " + "dropped. ignoring.\n"); } } } else { - sx_dprintk (SX_DEBUG_MODEMSIGNALS, "Hmmm. card told us DCD changed, but it didn't.\n"); + sx_dprintk(SX_DEBUG_MODEMSIGNALS, "Hmmm. card told us " + "DCD changed, but it didn't.\n"); } } } - /* This is what an interrupt routine should look like. * Small, elegant, clear. */ -static irqreturn_t sx_interrupt (int irq, void *ptr) +static irqreturn_t sx_interrupt(int irq, void *ptr) { struct sx_board *board = ptr; struct sx_port *port; int i; - func_enter (); - sx_dprintk (SX_DEBUG_FLOW, "sx: enter sx_interrupt (%d/%d)\n", irq, board->irq); + func_enter(); + sx_dprintk(SX_DEBUG_FLOW, "sx: enter sx_interrupt (%d/%d)\n", irq, + board->irq); /* AAargh! The order in which to do these things is essential and not trivial. - Rate limit goes before "recursive". Otherwise a series of - recursive calls will hang the machine in the interrupt routine. + recursive calls will hang the machine in the interrupt routine. - hardware twiddling goes before "recursive". Otherwise when we - poll the card, and a recursive interrupt happens, we won't - ack the card, so it might keep on interrupting us. (especially - level sensitive interrupt systems like PCI). + poll the card, and a recursive interrupt happens, we won't + ack the card, so it might keep on interrupting us. (especially + level sensitive interrupt systems like PCI). - Rate limit goes before hardware twiddling. Otherwise we won't - catch a card that has gone bonkers. + catch a card that has gone bonkers. - The "initialized" test goes after the hardware twiddling. Otherwise - the card will stick us in the interrupt routine again. + the card will stick us in the interrupt routine again. - The initialized test goes before recursive. - */ - - + */ #ifdef IRQ_RATE_LIMIT /* Aaargh! I'm ashamed. This costs more lines-of-code than the - actual interrupt routine!. (Well, used to when I wrote that comment) */ + actual interrupt routine!. (Well, used to when I wrote that + comment) */ { static int lastjif; - static int nintr=0; + static int nintr = 0; if (lastjif == jiffies) { if (++nintr > IRQ_RATE_LIMIT) { - free_irq (board->irq, board); - printk (KERN_ERR "sx: Too many interrupts. Turning off interrupt %d.\n", - board->irq); + free_irq(board->irq, board); + printk(KERN_ERR "sx: Too many interrupts. " + "Turning off interrupt %d.\n", + board->irq); } } else { lastjif = jiffies; @@ -1237,19 +1293,20 @@ static irqreturn_t sx_interrupt (int irq, void *ptr) } #endif - if (board->irq == irq) { /* Tell the card we've noticed the interrupt. */ - sx_write_board_word (board, cc_int_pending, 0); - if (IS_SX_BOARD (board)) { - write_sx_byte (board, SX_RESET_IRQ, 1); + sx_write_board_word(board, cc_int_pending, 0); + if (IS_SX_BOARD(board)) { + write_sx_byte(board, SX_RESET_IRQ, 1); } else if (IS_EISA_BOARD(board)) { - inb(board->eisa_base+0xc03); - write_sx_word(board, 8, 0); + inb(board->eisa_base + 0xc03); + write_sx_word(board, 8, 0); } else { - write_sx_byte (board, SI2_ISA_INTCLEAR, SI2_ISA_INTCLEAR_CLEAR); - write_sx_byte (board, SI2_ISA_INTCLEAR, SI2_ISA_INTCLEAR_SET); + write_sx_byte(board, SI2_ISA_INTCLEAR, + SI2_ISA_INTCLEAR_CLEAR); + write_sx_byte(board, SI2_ISA_INTCLEAR, + SI2_ISA_INTCLEAR_SET); } } @@ -1258,53 +1315,51 @@ static irqreturn_t sx_interrupt (int irq, void *ptr) if (!(board->flags & SX_BOARD_INITIALIZED)) return IRQ_HANDLED; - if (test_and_set_bit (SX_BOARD_INTR_LOCK, &board->locks)) { - printk (KERN_ERR "Recursive interrupt! (%d)\n", board->irq); + if (test_and_set_bit(SX_BOARD_INTR_LOCK, &board->locks)) { + printk(KERN_ERR "Recursive interrupt! (%d)\n", board->irq); return IRQ_HANDLED; } - for (i=0;i<board->nports;i++) { + for (i = 0; i < board->nports; i++) { port = &board->ports[i]; if (port->gs.flags & GS_ACTIVE) { - if (sx_read_channel_byte (port, hi_state)) { - sx_dprintk (SX_DEBUG_INTERRUPTS, - "Port %d: modem signal change?... \n", i); - sx_check_modem_signals (port); + if (sx_read_channel_byte(port, hi_state)) { + sx_dprintk(SX_DEBUG_INTERRUPTS, "Port %d: " + "modem signal change?... \n",i); + sx_check_modem_signals(port); } if (port->gs.xmit_cnt) { - sx_transmit_chars (port); + sx_transmit_chars(port); } if (!(port->gs.flags & SX_RX_THROTTLE)) { - sx_receive_chars (port); + sx_receive_chars(port); } } } - clear_bit (SX_BOARD_INTR_LOCK, &board->locks); + clear_bit(SX_BOARD_INTR_LOCK, &board->locks); - sx_dprintk (SX_DEBUG_FLOW, "sx: exit sx_interrupt (%d/%d)\n", irq, board->irq); - func_exit (); + sx_dprintk(SX_DEBUG_FLOW, "sx: exit sx_interrupt (%d/%d)\n", irq, + board->irq); + func_exit(); return IRQ_HANDLED; } - -static void sx_pollfunc (unsigned long data) +static void sx_pollfunc(unsigned long data) { - struct sx_board *board = (struct sx_board *) data; + struct sx_board *board = (struct sx_board *)data; - func_enter (); + func_enter(); - sx_interrupt (0, board); + sx_interrupt(0, board); init_timer(&board->timer); board->timer.expires = jiffies + sx_poll; - add_timer (&board->timer); - func_exit (); + add_timer(&board->timer); + func_exit(); } - - /* ********************************************************************** * * Here are the routines that actually * * interface with the generic_serial driver * @@ -1313,9 +1368,9 @@ static void sx_pollfunc (unsigned long data) /* Ehhm. I don't know how to fiddle with interrupts on the SX card. --REW */ /* Hmm. Ok I figured it out. You don't. */ -static void sx_disable_tx_interrupts (void * ptr) +static void sx_disable_tx_interrupts(void *ptr) { - struct sx_port *port = ptr; + struct sx_port *port = ptr; func_enter2(); port->gs.flags &= ~GS_TX_INTEN; @@ -1323,30 +1378,28 @@ static void sx_disable_tx_interrupts (void * ptr) func_exit(); } - -static void sx_enable_tx_interrupts (void * ptr) +static void sx_enable_tx_interrupts(void *ptr) { - struct sx_port *port = ptr; + struct sx_port *port = ptr; int data_in_buffer; func_enter2(); /* First transmit the characters that we're supposed to */ - sx_transmit_chars (port); + sx_transmit_chars(port); /* The sx card will never interrupt us if we don't fill the buffer past 25%. So we keep considering interrupts off if that's the case. */ - data_in_buffer = (sx_read_channel_byte (port, hi_txipos) - - sx_read_channel_byte (port, hi_txopos)) & 0xff; + data_in_buffer = (sx_read_channel_byte(port, hi_txipos) - + sx_read_channel_byte(port, hi_txopos)) & 0xff; /* XXX Must be "HIGH_WATER" for SI card according to doc. */ - if (data_in_buffer < LOW_WATER) + if (data_in_buffer < LOW_WATER) port->gs.flags &= ~GS_TX_INTEN; func_exit(); } - -static void sx_disable_rx_interrupts (void * ptr) +static void sx_disable_rx_interrupts(void *ptr) { /* struct sx_port *port = ptr; */ func_enter(); @@ -1354,7 +1407,7 @@ static void sx_disable_rx_interrupts (void * ptr) func_exit(); } -static void sx_enable_rx_interrupts (void * ptr) +static void sx_enable_rx_interrupts(void *ptr) { /* struct sx_port *port = ptr; */ func_enter(); @@ -1362,55 +1415,48 @@ static void sx_enable_rx_interrupts (void * ptr) func_exit(); } - /* Jeez. Isn't this simple? */ -static int sx_get_CD (void * ptr) +static int sx_get_CD(void *ptr) { struct sx_port *port = ptr; func_enter2(); func_exit(); - return ((sx_read_channel_byte (port, hi_ip) & IP_DCD) != 0); + return ((sx_read_channel_byte(port, hi_ip) & IP_DCD) != 0); } - /* Jeez. Isn't this simple? */ -static int sx_chars_in_buffer (void * ptr) +static int sx_chars_in_buffer(void *ptr) { struct sx_port *port = ptr; func_enter2(); func_exit(); - return ((sx_read_channel_byte (port, hi_txipos) - - sx_read_channel_byte (port, hi_txopos)) & 0xff); + return ((sx_read_channel_byte(port, hi_txipos) - + sx_read_channel_byte(port, hi_txopos)) & 0xff); } - -static void sx_shutdown_port (void * ptr) +static void sx_shutdown_port(void *ptr) { - struct sx_port *port = ptr; + struct sx_port *port = ptr; func_enter(); - port->gs.flags &= ~ GS_ACTIVE; + port->gs.flags &= ~GS_ACTIVE; if (port->gs.tty && (port->gs.tty->termios->c_cflag & HUPCL)) { - sx_setsignals (port, 0, 0); + sx_setsignals(port, 0, 0); sx_reconfigure_port(port); } func_exit(); } - - - - /* ********************************************************************** * * Here are the routines that actually * * interface with the rest of the system * * ********************************************************************** */ -static int sx_open (struct tty_struct * tty, struct file * filp) +static int sx_open(struct tty_struct *tty, struct file *filp) { struct sx_port *port; int retval, line; @@ -1423,18 +1469,18 @@ static int sx_open (struct tty_struct * tty, struct file * filp) } line = tty->index; - sx_dprintk (SX_DEBUG_OPEN, "%d: opening line %d. tty=%p ctty=%p, np=%d)\n", - current->pid, line, tty, current->signal->tty, sx_nports); + sx_dprintk(SX_DEBUG_OPEN, "%d: opening line %d. tty=%p ctty=%p, " + "np=%d)\n", current->pid, line, tty, + current->signal->tty, sx_nports); if ((line < 0) || (line >= SX_NPORTS) || (line >= sx_nports)) return -ENODEV; - port = & sx_ports[line]; + port = &sx_ports[line]; port->c_dcd = 0; /* Make sure that the first interrupt doesn't detect a - 1 -> 0 transition. */ - + 1 -> 0 transition. */ - sx_dprintk (SX_DEBUG_OPEN, "port = %p c_dcd = %d\n", port, port->c_dcd); + sx_dprintk(SX_DEBUG_OPEN, "port = %p c_dcd = %d\n", port, port->c_dcd); spin_lock_irqsave(&port->gs.driver_lock, flags); @@ -1443,13 +1489,13 @@ static int sx_open (struct tty_struct * tty, struct file * filp) port->gs.count++; spin_unlock_irqrestore(&port->gs.driver_lock, flags); - sx_dprintk (SX_DEBUG_OPEN, "starting port\n"); + sx_dprintk(SX_DEBUG_OPEN, "starting port\n"); /* * Start up serial port */ retval = gs_init_port(&port->gs); - sx_dprintk (SX_DEBUG_OPEN, "done gs_init\n"); + sx_dprintk(SX_DEBUG_OPEN, "done gs_init\n"); if (retval) { port->gs.count--; return retval; @@ -1457,19 +1503,20 @@ static int sx_open (struct tty_struct * tty, struct file * filp) port->gs.flags |= GS_ACTIVE; if (port->gs.count <= 1) - sx_setsignals (port, 1,1); + sx_setsignals(port, 1, 1); #if 0 if (sx_debug & SX_DEBUG_OPEN) - my_hd (port, sizeof (*port)); + my_hd(port, sizeof(*port)); #else if (sx_debug & SX_DEBUG_OPEN) - my_hd_io (port->board->base + port->ch_base, sizeof (*port)); + my_hd_io(port->board->base + port->ch_base, sizeof(*port)); #endif if (port->gs.count <= 1) { - if (sx_send_command (port, HS_LOPEN, -1, HS_IDLE_OPEN) != 1) { - printk (KERN_ERR "sx: Card didn't respond to LOPEN command.\n"); + if (sx_send_command(port, HS_LOPEN, -1, HS_IDLE_OPEN) != 1) { + printk(KERN_ERR "sx: Card didn't respond to LOPEN " + "command.\n"); spin_lock_irqsave(&port->gs.driver_lock, flags); port->gs.count--; spin_unlock_irqrestore(&port->gs.driver_lock, flags); @@ -1478,75 +1525,76 @@ static int sx_open (struct tty_struct * tty, struct file * filp) } retval = gs_block_til_ready(port, filp); - sx_dprintk (SX_DEBUG_OPEN, "Block til ready returned %d. Count=%d\n", - retval, port->gs.count); + sx_dprintk(SX_DEBUG_OPEN, "Block til ready returned %d. Count=%d\n", + retval, port->gs.count); if (retval) { - /* - * Don't lower gs.count here because sx_close() will be called later - */ +/* + * Don't lower gs.count here because sx_close() will be called later + */ return retval; } /* tty->low_latency = 1; */ - port->c_dcd = sx_get_CD (port); - sx_dprintk (SX_DEBUG_OPEN, "at open: cd=%d\n", port->c_dcd); + port->c_dcd = sx_get_CD(port); + sx_dprintk(SX_DEBUG_OPEN, "at open: cd=%d\n", port->c_dcd); func_exit(); return 0; } - -static void sx_close (void *ptr) +static void sx_close(void *ptr) { - struct sx_port *port = ptr; + struct sx_port *port = ptr; /* Give the port 5 seconds to close down. */ - int to = 5 * HZ; + int to = 5 * HZ; - func_enter (); + func_enter(); - sx_setsignals (port, 0, 0); - sx_reconfigure_port(port); - sx_send_command (port, HS_CLOSE, 0, 0); + sx_setsignals(port, 0, 0); + sx_reconfigure_port(port); + sx_send_command(port, HS_CLOSE, 0, 0); - while (to-- && (sx_read_channel_byte (port, hi_hstat) != HS_IDLE_CLOSED)) + while (to-- && (sx_read_channel_byte(port, hi_hstat) != HS_IDLE_CLOSED)) if (msleep_interruptible(10)) break; - if (sx_read_channel_byte (port, hi_hstat) != HS_IDLE_CLOSED) { - if (sx_send_command (port, HS_FORCE_CLOSED, -1, HS_IDLE_CLOSED) != 1) { - printk (KERN_ERR - "sx: sent the force_close command, but card didn't react\n"); + if (sx_read_channel_byte(port, hi_hstat) != HS_IDLE_CLOSED) { + if (sx_send_command(port, HS_FORCE_CLOSED, -1, HS_IDLE_CLOSED) + != 1) { + printk(KERN_ERR "sx: sent the force_close command, but " + "card didn't react\n"); } else - sx_dprintk (SX_DEBUG_CLOSE, "sent the force_close command.\n"); + sx_dprintk(SX_DEBUG_CLOSE, "sent the force_close " + "command.\n"); } - sx_dprintk (SX_DEBUG_CLOSE, "waited %d jiffies for close. count=%d\n", - 5 * HZ - to - 1, port->gs.count); + sx_dprintk(SX_DEBUG_CLOSE, "waited %d jiffies for close. count=%d\n", + 5 * HZ - to - 1, port->gs.count); - if(port->gs.count) { - sx_dprintk(SX_DEBUG_CLOSE, "WARNING port count:%d\n", port->gs.count); - //printk ("%s SETTING port count to zero: %p count: %d\n", __FUNCTION__, port, port->gs.count); - //port->gs.count = 0; + if (port->gs.count) { + sx_dprintk(SX_DEBUG_CLOSE, "WARNING port count:%d\n", + port->gs.count); + /*printk("%s SETTING port count to zero: %p count: %d\n", + __FUNCTION__, port, port->gs.count); + port->gs.count = 0;*/ } - func_exit (); + func_exit(); } - - /* This is relatively thorough. But then again it is only 20 lines. */ -#define MARCHUP for (i=min;i<max;i++) -#define MARCHDOWN for (i=max-1;i>=min;i--) -#define W0 write_sx_byte (board, i, 0x55) -#define W1 write_sx_byte (board, i, 0xaa) -#define R0 if (read_sx_byte (board, i) != 0x55) return 1 -#define R1 if (read_sx_byte (board, i) != 0xaa) return 1 +#define MARCHUP for (i = min; i < max; i++) +#define MARCHDOWN for (i = max - 1; i >= min; i--) +#define W0 write_sx_byte(board, i, 0x55) +#define W1 write_sx_byte(board, i, 0xaa) +#define R0 if (read_sx_byte(board, i) != 0x55) return 1 +#define R1 if (read_sx_byte(board, i) != 0xaa) return 1 /* This memtest takes a human-noticable time. You normally only do it once a boot, so I guess that it is worth it. */ -static int do_memtest (struct sx_board *board, int min, int max) +static int do_memtest(struct sx_board *board, int min, int max) { int i; @@ -1555,16 +1603,37 @@ static int do_memtest (struct sx_board *board, int min, int max) intermittent errors. -- REW (For the theory behind memory testing see: Testing Semiconductor Memories by A.J. van de Goor.) */ - MARCHUP {W0;} - MARCHUP {R0;W1;R1;W0;R0;W1;} - MARCHUP {R1;W0;W1;} - MARCHDOWN {R1;W0;W1;W0;} - MARCHDOWN {R0;W1;W0;} + MARCHUP { + W0; + } + MARCHUP { + R0; + W1; + R1; + W0; + R0; + W1; + } + MARCHUP { + R1; + W0; + W1; + } + MARCHDOWN { + R1; + W0; + W1; + W0; + } + MARCHDOWN { + R0; + W1; + W0; + } return 0; } - #undef MARCHUP #undef MARCHDOWN #undef W0 @@ -1572,33 +1641,54 @@ static int do_memtest (struct sx_board *board, int min, int max) #undef R0 #undef R1 -#define MARCHUP for (i=min;i<max;i+=2) -#define MARCHDOWN for (i=max-1;i>=min;i-=2) -#define W0 write_sx_word (board, i, 0x55aa) -#define W1 write_sx_word (board, i, 0xaa55) -#define R0 if (read_sx_word (board, i) != 0x55aa) return 1 -#define R1 if (read_sx_word (board, i) != 0xaa55) return 1 +#define MARCHUP for (i = min; i < max; i += 2) +#define MARCHDOWN for (i = max - 1; i >= min; i -= 2) +#define W0 write_sx_word(board, i, 0x55aa) +#define W1 write_sx_word(board, i, 0xaa55) +#define R0 if (read_sx_word(board, i) != 0x55aa) return 1 +#define R1 if (read_sx_word(board, i) != 0xaa55) return 1 #if 0 /* This memtest takes a human-noticable time. You normally only do it once a boot, so I guess that it is worth it. */ -static int do_memtest_w (struct sx_board *board, int min, int max) +static int do_memtest_w(struct sx_board *board, int min, int max) { int i; - MARCHUP {W0;} - MARCHUP {R0;W1;R1;W0;R0;W1;} - MARCHUP {R1;W0;W1;} - MARCHDOWN {R1;W0;W1;W0;} - MARCHDOWN {R0;W1;W0;} + MARCHUP { + W0; + } + MARCHUP { + R0; + W1; + R1; + W0; + R0; + W1; + } + MARCHUP { + R1; + W0; + W1; + } + MARCHDOWN { + R1; + W0; + W1; + W0; + } + MARCHDOWN { + R0; + W1; + W0; + } return 0; } #endif - -static int sx_fw_ioctl (struct inode *inode, struct file *filp, - unsigned int cmd, unsigned long arg) +static int sx_fw_ioctl(struct inode *inode, struct file *filp, + unsigned int cmd, unsigned long arg) { int rc = 0; int __user *descr = (int __user *)arg; @@ -1610,7 +1700,7 @@ static int sx_fw_ioctl (struct inode *inode, struct file *filp, func_enter(); -#if 0 +#if 0 /* Removed superuser check: Sysops can use the permissions on the device file to restrict access. Recommendation: Root only. (root.root 600) */ if (!capable(CAP_SYS_ADMIN)) { @@ -1618,103 +1708,115 @@ static int sx_fw_ioctl (struct inode *inode, struct file *filp, } #endif - sx_dprintk (SX_DEBUG_FIRMWARE, "IOCTL %x: %lx\n", cmd, arg); + sx_dprintk(SX_DEBUG_FIRMWARE, "IOCTL %x: %lx\n", cmd, arg); - if (!board) board = &boards[0]; + if (!board) + board = &boards[0]; if (board->flags & SX_BOARD_PRESENT) { - sx_dprintk (SX_DEBUG_FIRMWARE, "Board present! (%x)\n", - board->flags); + sx_dprintk(SX_DEBUG_FIRMWARE, "Board present! (%x)\n", + board->flags); } else { - sx_dprintk (SX_DEBUG_FIRMWARE, "Board not present! (%x) all:", - board->flags); - for (i=0;i< SX_NBOARDS;i++) - sx_dprintk (SX_DEBUG_FIRMWARE, "<%x> ", boards[i].flags); - sx_dprintk (SX_DEBUG_FIRMWARE, "\n"); + sx_dprintk(SX_DEBUG_FIRMWARE, "Board not present! (%x) all:", + board->flags); + for (i = 0; i < SX_NBOARDS; i++) + sx_dprintk(SX_DEBUG_FIRMWARE, "<%x> ", boards[i].flags); + sx_dprintk(SX_DEBUG_FIRMWARE, "\n"); return -EIO; } switch (cmd) { case SXIO_SET_BOARD: - sx_dprintk (SX_DEBUG_FIRMWARE, "set board to %ld\n", arg); - if (arg >= SX_NBOARDS) return -EIO; - sx_dprintk (SX_DEBUG_FIRMWARE, "not out of range\n"); - if (!(boards[arg].flags & SX_BOARD_PRESENT)) return -EIO; - sx_dprintk (SX_DEBUG_FIRMWARE, ".. and present!\n"); + sx_dprintk(SX_DEBUG_FIRMWARE, "set board to %ld\n", arg); + if (arg >= SX_NBOARDS) + return -EIO; + sx_dprintk(SX_DEBUG_FIRMWARE, "not out of range\n"); + if (!(boards[arg].flags & SX_BOARD_PRESENT)) + return -EIO; + sx_dprintk(SX_DEBUG_FIRMWARE, ".. and present!\n"); board = &boards[arg]; break; case SXIO_GET_TYPE: - rc = -ENOENT; /* If we manage to miss one, return error. */ - if (IS_SX_BOARD (board)) rc = SX_TYPE_SX; - if (IS_CF_BOARD (board)) rc = SX_TYPE_CF; - if (IS_SI_BOARD (board)) rc = SX_TYPE_SI; - if (IS_SI1_BOARD (board)) rc = SX_TYPE_SI; - if (IS_EISA_BOARD (board)) rc = SX_TYPE_SI; - sx_dprintk (SX_DEBUG_FIRMWARE, "returning type= %d\n", rc); + rc = -ENOENT; /* If we manage to miss one, return error. */ + if (IS_SX_BOARD(board)) + rc = SX_TYPE_SX; + if (IS_CF_BOARD(board)) + rc = SX_TYPE_CF; + if (IS_SI_BOARD(board)) + rc = SX_TYPE_SI; + if (IS_SI1_BOARD(board)) + rc = SX_TYPE_SI; + if (IS_EISA_BOARD(board)) + rc = SX_TYPE_SI; + sx_dprintk(SX_DEBUG_FIRMWARE, "returning type= %d\n", rc); break; case SXIO_DO_RAMTEST: - if (sx_initialized) /* Already initialized: better not ramtest the board. */ + if (sx_initialized) /* Already initialized: better not ramtest the board. */ return -EPERM; - if (IS_SX_BOARD (board)) { - rc = do_memtest (board, 0, 0x7000); - if (!rc) rc = do_memtest (board, 0, 0x7000); - /*if (!rc) rc = do_memtest_w (board, 0, 0x7000);*/ + if (IS_SX_BOARD(board)) { + rc = do_memtest(board, 0, 0x7000); + if (!rc) + rc = do_memtest(board, 0, 0x7000); + /*if (!rc) rc = do_memtest_w (board, 0, 0x7000); */ } else { - rc = do_memtest (board, 0, 0x7ff8); + rc = do_memtest(board, 0, 0x7ff8); /* if (!rc) rc = do_memtest_w (board, 0, 0x7ff8); */ } - sx_dprintk (SX_DEBUG_FIRMWARE, "returning memtest result= %d\n", rc); + sx_dprintk(SX_DEBUG_FIRMWARE, "returning memtest result= %d\n", + rc); break; case SXIO_DOWNLOAD: - if (sx_initialized) /* Already initialized */ + if (sx_initialized) /* Already initialized */ return -EEXIST; - if (!sx_reset (board)) + if (!sx_reset(board)) return -EIO; - sx_dprintk (SX_DEBUG_INIT, "reset the board...\n"); - - tmp = kmalloc (SX_CHUNK_SIZE, GFP_USER); - if (!tmp) return -ENOMEM; - get_user (nbytes, descr++); - get_user (offset, descr++); - get_user (data, descr++); + sx_dprintk(SX_DEBUG_INIT, "reset the board...\n"); + + tmp = kmalloc(SX_CHUNK_SIZE, GFP_USER); + if (!tmp) + return -ENOMEM; + get_user(nbytes, descr++); + get_user(offset, descr++); + get_user(data, descr++); while (nbytes && data) { - for (i=0;i<nbytes;i += SX_CHUNK_SIZE) { - if (copy_from_user(tmp, (char __user *)data+i, - (i + SX_CHUNK_SIZE > - nbytes) ? nbytes - i : - SX_CHUNK_SIZE)) { - kfree (tmp); + for (i = 0; i < nbytes; i += SX_CHUNK_SIZE) { + if (copy_from_user(tmp, (char __user *)data + i, + (i + SX_CHUNK_SIZE > nbytes) ? + nbytes - i : SX_CHUNK_SIZE)) { + kfree(tmp); return -EFAULT; } - memcpy_toio(board->base2 + offset + i, tmp, - (i+SX_CHUNK_SIZE>nbytes)?nbytes-i:SX_CHUNK_SIZE); + memcpy_toio(board->base2 + offset + i, tmp, + (i + SX_CHUNK_SIZE > nbytes) ? + nbytes - i : SX_CHUNK_SIZE); } - get_user (nbytes, descr++); - get_user (offset, descr++); - get_user (data, descr++); + get_user(nbytes, descr++); + get_user(offset, descr++); + get_user(data, descr++); } - kfree (tmp); - sx_nports += sx_init_board (board); + kfree(tmp); + sx_nports += sx_init_board(board); rc = sx_nports; break; case SXIO_INIT: - if (sx_initialized) /* Already initialized */ + if (sx_initialized) /* Already initialized */ return -EEXIST; /* This is not allowed until all boards are initialized... */ - for (i=0;i<SX_NBOARDS;i++) { - if ( (boards[i].flags & SX_BOARD_PRESENT) && - !(boards[i].flags & SX_BOARD_INITIALIZED)) + for (i = 0; i < SX_NBOARDS; i++) { + if ((boards[i].flags & SX_BOARD_PRESENT) && + !(boards[i].flags & SX_BOARD_INITIALIZED)) return -EIO; } - for (i=0;i<SX_NBOARDS;i++) - if (!(boards[i].flags & SX_BOARD_PRESENT)) break; - - sx_dprintk (SX_DEBUG_FIRMWARE, "initing portstructs, %d boards, " - "%d channels, first board: %d ports\n", - i, sx_nports, boards[0].nports); - rc = sx_init_portstructs (i, sx_nports); - sx_init_drivers (); - if (rc >= 0) + for (i = 0; i < SX_NBOARDS; i++) + if (!(boards[i].flags & SX_BOARD_PRESENT)) + break; + + sx_dprintk(SX_DEBUG_FIRMWARE, "initing portstructs, %d boards, " + "%d channels, first board: %d ports\n", + i, sx_nports, boards[0].nports); + rc = sx_init_portstructs(i, sx_nports); + sx_init_drivers(); + if (rc >= 0) sx_initialized++; break; case SXIO_SETDEBUG: @@ -1731,32 +1833,32 @@ static int sx_fw_ioctl (struct inode *inode, struct file *filp, rc = sx_nports; break; default: - printk (KERN_WARNING "Unknown ioctl on firmware device (%x).\n", cmd); + printk(KERN_WARNING "Unknown ioctl on firmware device (%x).\n", + cmd); break; } - func_exit (); + func_exit(); return rc; } - -static void sx_break (struct tty_struct * tty, int flag) +static void sx_break(struct tty_struct *tty, int flag) { struct sx_port *port = tty->driver_data; int rv; - func_enter (); + func_enter(); - if (flag) - rv = sx_send_command (port, HS_START, -1, HS_IDLE_BREAK); - else - rv = sx_send_command (port, HS_STOP, -1, HS_IDLE_OPEN); - if (rv != 1) printk (KERN_ERR "sx: couldn't send break (%x).\n", - read_sx_byte (port->board, CHAN_OFFSET (port, hi_hstat))); + if (flag) + rv = sx_send_command(port, HS_START, -1, HS_IDLE_BREAK); + else + rv = sx_send_command(port, HS_STOP, -1, HS_IDLE_OPEN); + if (rv != 1) + printk(KERN_ERR "sx: couldn't send break (%x).\n", + read_sx_byte(port->board, CHAN_OFFSET(port, hi_hstat))); - func_exit (); + func_exit(); } - static int sx_tiocmget(struct tty_struct *tty, struct file *file) { struct sx_port *port = tty->driver_data; @@ -1764,7 +1866,7 @@ static int sx_tiocmget(struct tty_struct *tty, struct file *file) } static int sx_tiocmset(struct tty_struct *tty, struct file *file, - unsigned int set, unsigned int clear) + unsigned int set, unsigned int clear) { struct sx_port *port = tty->driver_data; int rts = -1, dtr = -1; @@ -1783,8 +1885,8 @@ static int sx_tiocmset(struct tty_struct *tty, struct file *file, return 0; } -static int sx_ioctl (struct tty_struct * tty, struct file * filp, - unsigned int cmd, unsigned long arg) +static int sx_ioctl(struct tty_struct *tty, struct file *filp, + unsigned int cmd, unsigned long arg) { int rc; struct sx_port *port = tty->driver_data; @@ -1797,10 +1899,10 @@ static int sx_ioctl (struct tty_struct * tty, struct file * filp, switch (cmd) { case TIOCGSOFTCAR: rc = put_user(((tty->termios->c_cflag & CLOCAL) ? 1 : 0), - (unsigned __user *) argp); + (unsigned __user *)argp); break; case TIOCSSOFTCAR: - if ((rc = get_user(ival, (unsigned __user *) argp)) == 0) { + if ((rc = get_user(ival, (unsigned __user *)argp)) == 0) { tty->termios->c_cflag = (tty->termios->c_cflag & ~CLOCAL) | (ival ? CLOCAL : 0); @@ -1821,7 +1923,6 @@ static int sx_ioctl (struct tty_struct * tty, struct file * filp, return rc; } - /* The throttle/unthrottle scheme for the Specialix card is different * from other drivers and deserves some explanation. * The Specialix hardware takes care of XON/XOFF @@ -1838,7 +1939,7 @@ static int sx_ioctl (struct tty_struct * tty, struct file * filp, * flow control scheme is in use for that port. -- Simon Allen */ -static void sx_throttle (struct tty_struct * tty) +static void sx_throttle(struct tty_struct *tty) { struct sx_port *port = (struct sx_port *)tty->driver_data; @@ -1846,14 +1947,13 @@ static void sx_throttle (struct tty_struct * tty) /* If the port is using any type of input flow * control then throttle the port. */ - if((tty->termios->c_cflag & CRTSCTS) || (I_IXOFF(tty)) ) { + if ((tty->termios->c_cflag & CRTSCTS) || (I_IXOFF(tty))) { port->gs.flags |= SX_RX_THROTTLE; } func_exit(); } - -static void sx_unthrottle (struct tty_struct * tty) +static void sx_unthrottle(struct tty_struct *tty) { struct sx_port *port = (struct sx_port *)tty->driver_data; @@ -1867,15 +1967,11 @@ static void sx_unthrottle (struct tty_struct * tty) return; } - /* ********************************************************************** * * Here are the initialization routines. * * ********************************************************************** */ - - - -static int sx_init_board (struct sx_board *board) +static int sx_init_board(struct sx_board *board) { int addr; int chans; @@ -1887,36 +1983,38 @@ static int sx_init_board (struct sx_board *board) board->flags |= SX_BOARD_INITIALIZED; - if (read_sx_byte (board, 0)) + if (read_sx_byte(board, 0)) /* CF boards may need this. */ - write_sx_byte(board,0, 0); + write_sx_byte(board, 0, 0); /* This resets the processor again, to make sure it didn't do any foolish things while we were downloading the image */ - if (!sx_reset (board)) + if (!sx_reset(board)) return 0; - sx_start_board (board); - udelay (10); - if (!sx_busy_wait_neq (board, 0, 0xff, 0)) { - printk (KERN_ERR "sx: Ooops. Board won't initialize.\n"); + sx_start_board(board); + udelay(10); + if (!sx_busy_wait_neq(board, 0, 0xff, 0)) { + printk(KERN_ERR "sx: Ooops. Board won't initialize.\n"); return 0; } /* Ok. So now the processor on the card is running. It gathered some info for us... */ - sx_dprintk (SX_DEBUG_INIT, "The sxcard structure:\n"); - if (sx_debug & SX_DEBUG_INIT) my_hd_io (board->base, 0x10); - sx_dprintk (SX_DEBUG_INIT, "the first sx_module structure:\n"); - if (sx_debug & SX_DEBUG_INIT) my_hd_io (board->base + 0x80, 0x30); - - sx_dprintk (SX_DEBUG_INIT, - "init_status: %x, %dk memory, firmware V%x.%02x,\n", - read_sx_byte (board, 0), read_sx_byte(board, 1), - read_sx_byte (board, 5), read_sx_byte(board, 4)); - - if (read_sx_byte (board, 0) == 0xff) { - printk (KERN_INFO "sx: No modules found. Sorry.\n"); + sx_dprintk(SX_DEBUG_INIT, "The sxcard structure:\n"); + if (sx_debug & SX_DEBUG_INIT) + my_hd_io(board->base, 0x10); + sx_dprintk(SX_DEBUG_INIT, "the first sx_module structure:\n"); + if (sx_debug & SX_DEBUG_INIT) + my_hd_io(board->base + 0x80, 0x30); + + sx_dprintk(SX_DEBUG_INIT, "init_status: %x, %dk memory, firmware " + "V%x.%02x,\n", + read_sx_byte(board, 0), read_sx_byte(board, 1), + read_sx_byte(board, 5), read_sx_byte(board, 4)); + + if (read_sx_byte(board, 0) == 0xff) { + printk(KERN_INFO "sx: No modules found. Sorry.\n"); board->nports = 0; return 0; } @@ -1924,81 +2022,97 @@ static int sx_init_board (struct sx_board *board) chans = 0; if (IS_SX_BOARD(board)) { - sx_write_board_word (board, cc_int_count, sx_maxints); + sx_write_board_word(board, cc_int_count, sx_maxints); } else { if (sx_maxints) - sx_write_board_word (board, cc_int_count, SI_PROCESSOR_CLOCK/8/sx_maxints); + sx_write_board_word(board, cc_int_count, + SI_PROCESSOR_CLOCK / 8 / sx_maxints); } /* grab the first module type... */ - /* board->ta_type = mod_compat_type (read_sx_byte (board, 0x80 + 0x08)); */ - board->ta_type = mod_compat_type (sx_read_module_byte (board, 0x80, mc_chip)); + /* board->ta_type = mod_compat_type (read_sx_byte (board, 0x80 + 0x08)); */ + board->ta_type = mod_compat_type(sx_read_module_byte(board, 0x80, + mc_chip)); /* XXX byteorder */ - for (addr = 0x80;addr != 0;addr = read_sx_word (board, addr) & 0x7fff) { - type = sx_read_module_byte (board, addr, mc_chip); - sx_dprintk (SX_DEBUG_INIT, "Module at %x: %d channels\n", - addr, read_sx_byte (board, addr + 2)); - - chans += sx_read_module_byte (board, addr, mc_type); - - sx_dprintk (SX_DEBUG_INIT, "module is an %s, which has %s/%s panels\n", - mod_type_s (type), - pan_type_s (sx_read_module_byte (board, addr, mc_mods) & 0xf), - pan_type_s (sx_read_module_byte (board, addr, mc_mods) >> 4)); - - sx_dprintk (SX_DEBUG_INIT, "CD1400 versions: %x/%x, ASIC version: %x\n", - sx_read_module_byte (board, addr, mc_rev1), - sx_read_module_byte (board, addr, mc_rev2), - sx_read_module_byte (board, addr, mc_mtaasic_rev)); + for (addr = 0x80; addr != 0; addr = read_sx_word(board, addr) & 0x7fff){ + type = sx_read_module_byte(board, addr, mc_chip); + sx_dprintk(SX_DEBUG_INIT, "Module at %x: %d channels\n", + addr, read_sx_byte(board, addr + 2)); + + chans += sx_read_module_byte(board, addr, mc_type); + + sx_dprintk(SX_DEBUG_INIT, "module is an %s, which has %s/%s " + "panels\n", + mod_type_s(type), + pan_type_s(sx_read_module_byte(board, addr, + mc_mods) & 0xf), + pan_type_s(sx_read_module_byte(board, addr, + mc_mods) >> 4)); + + sx_dprintk(SX_DEBUG_INIT, "CD1400 versions: %x/%x, ASIC " + "version: %x\n", + sx_read_module_byte(board, addr, mc_rev1), + sx_read_module_byte(board, addr, mc_rev2), + sx_read_module_byte(board, addr, mc_mtaasic_rev)); /* The following combinations are illegal: It should theoretically work, but timing problems make the bus HANG. */ - if (mod_compat_type (type) != board->ta_type) { - printk (KERN_ERR "sx: This is an invalid configuration.\n" - "Don't mix TA/MTA/SXDC on the same hostadapter.\n"); - chans=0; + if (mod_compat_type(type) != board->ta_type) { + printk(KERN_ERR "sx: This is an invalid " + "configuration.\nDon't mix TA/MTA/SXDC on the " + "same hostadapter.\n"); + chans = 0; break; } - if ((IS_EISA_BOARD(board) || - IS_SI_BOARD(board)) && (mod_compat_type(type) == 4)) { - printk (KERN_ERR "sx: This is an invalid configuration.\n" - "Don't use SXDCs on an SI/XIO adapter.\n"); - chans=0; + if ((IS_EISA_BOARD(board) || + IS_SI_BOARD(board)) && + (mod_compat_type(type) == 4)) { + printk(KERN_ERR "sx: This is an invalid " + "configuration.\nDon't use SXDCs on an SI/XIO " + "adapter.\n"); + chans = 0; break; } -#if 0 /* Problem fixed: firmware 3.05 */ +#if 0 /* Problem fixed: firmware 3.05 */ if (IS_SX_BOARD(board) && (type == TA8)) { /* There are some issues with the firmware and the DCD/RTS lines. It might work if you tie them together or something. - It might also work if you get a newer sx_firmware. Therefore + It might also work if you get a newer sx_firmware. Therefore this is just a warning. */ - printk (KERN_WARNING "sx: The SX host doesn't work too well " - "with the TA8 adapters.\nSpecialix is working on it.\n"); + printk(KERN_WARNING + "sx: The SX host doesn't work too well " + "with the TA8 adapters.\nSpecialix is working on it.\n"); } #endif } if (chans) { - if(board->irq > 0) { + if (board->irq > 0) { /* fixed irq, probably PCI */ - if(sx_irqmask & (1 << board->irq)) { /* may we use this irq? */ - if(request_irq(board->irq, sx_interrupt, IRQF_SHARED | IRQF_DISABLED, "sx", board)) { - printk(KERN_ERR "sx: Cannot allocate irq %d.\n", board->irq); + if (sx_irqmask & (1 << board->irq)) { /* may we use this irq? */ + if (request_irq(board->irq, sx_interrupt, + IRQF_SHARED | IRQF_DISABLED, + "sx", board)) { + printk(KERN_ERR "sx: Cannot allocate " + "irq %d.\n", board->irq); board->irq = 0; } } else board->irq = 0; - } else if(board->irq < 0 && sx_irqmask) { + } else if (board->irq < 0 && sx_irqmask) { /* auto-allocate irq */ int irqnr; - int irqmask = sx_irqmask & (IS_SX_BOARD(board) ? SX_ISA_IRQ_MASK : SI2_ISA_IRQ_MASK); - for(irqnr = 15; irqnr > 0; irqnr--) - if(irqmask & (1 << irqnr)) - if(! request_irq(irqnr, sx_interrupt, IRQF_SHARED | IRQF_DISABLED, "sx", board)) + int irqmask = sx_irqmask & (IS_SX_BOARD(board) ? + SX_ISA_IRQ_MASK : SI2_ISA_IRQ_MASK); + for (irqnr = 15; irqnr > 0; irqnr--) + if (irqmask & (1 << irqnr)) + if (!request_irq(irqnr, sx_interrupt, + IRQF_SHARED | IRQF_DISABLED, + "sx", board)) break; - if(! irqnr) + if (!irqnr) printk(KERN_ERR "sx: Cannot allocate IRQ.\n"); board->irq = irqnr; } else @@ -2006,52 +2120,52 @@ static int sx_init_board (struct sx_board *board) if (board->irq) { /* Found a valid interrupt, start up interrupts! */ - sx_dprintk (SX_DEBUG_INIT, "Using irq %d.\n", board->irq); - sx_start_interrupts (board); + sx_dprintk(SX_DEBUG_INIT, "Using irq %d.\n", + board->irq); + sx_start_interrupts(board); board->poll = sx_slowpoll; board->flags |= SX_IRQ_ALLOCATED; } else { /* no irq: setup board for polled operation */ board->poll = sx_poll; - sx_dprintk (SX_DEBUG_INIT, "Using poll-interval %d.\n", board->poll); + sx_dprintk(SX_DEBUG_INIT, "Using poll-interval %d.\n", + board->poll); } - /* The timer should be initialized anyway: That way we can safely - del_timer it when the module is unloaded. */ - init_timer (&board->timer); + /* The timer should be initialized anyway: That way we can + safely del_timer it when the module is unloaded. */ + init_timer(&board->timer); if (board->poll) { - board->timer.data = (unsigned long) board; + board->timer.data = (unsigned long)board; board->timer.function = sx_pollfunc; board->timer.expires = jiffies + board->poll; - add_timer (&board->timer); + add_timer(&board->timer); } } else { board->irq = 0; } board->nports = chans; - sx_dprintk (SX_DEBUG_INIT, "returning %d ports.", board->nports); + sx_dprintk(SX_DEBUG_INIT, "returning %d ports.", board->nports); func_exit(); return chans; } - static void __devinit printheader(void) { static int header_printed; if (!header_printed) { - printk (KERN_INFO "Specialix SX driver " - "(C) 1998/1999 R.E.Wolff@BitWizard.nl \n"); - printk (KERN_INFO "sx: version " __stringify(SX_VERSION) "\n"); + printk(KERN_INFO "Specialix SX driver " + "(C) 1998/1999 R.E.Wolff@BitWizard.nl\n"); + printk(KERN_INFO "sx: version " __stringify(SX_VERSION) "\n"); header_printed = 1; } } - -static int __devinit probe_sx (struct sx_board *board) +static int __devinit probe_sx(struct sx_board *board) { struct vpd_prom vpdp; char *p; @@ -2059,51 +2173,57 @@ static int __devinit probe_sx (struct sx_board *board) func_enter(); - if (!IS_CF_BOARD (board)) { - sx_dprintk (SX_DEBUG_PROBE, "Going to verify vpd prom at %p.\n", - board->base + SX_VPD_ROM); + if (!IS_CF_BOARD(board)) { + sx_dprintk(SX_DEBUG_PROBE, "Going to verify vpd prom at %p.\n", + board->base + SX_VPD_ROM); if (sx_debug & SX_DEBUG_PROBE) my_hd_io(board->base + SX_VPD_ROM, 0x40); - p = (char *) &vpdp; - for (i=0;i< sizeof (struct vpd_prom);i++) - *p++ = read_sx_byte (board, SX_VPD_ROM + i*2); + p = (char *)&vpdp; + for (i = 0; i < sizeof(struct vpd_prom); i++) + *p++ = read_sx_byte(board, SX_VPD_ROM + i * 2); if (sx_debug & SX_DEBUG_PROBE) - my_hd (&vpdp, 0x20); + my_hd(&vpdp, 0x20); - sx_dprintk (SX_DEBUG_PROBE, "checking identifier...\n"); + sx_dprintk(SX_DEBUG_PROBE, "checking identifier...\n"); - if (strncmp (vpdp.identifier, SX_VPD_IDENT_STRING, 16) != 0) { - sx_dprintk (SX_DEBUG_PROBE, "Got non-SX identifier: '%s'\n", - vpdp.identifier); + if (strncmp(vpdp.identifier, SX_VPD_IDENT_STRING, 16) != 0) { + sx_dprintk(SX_DEBUG_PROBE, "Got non-SX identifier: " + "'%s'\n", vpdp.identifier); return 0; } } - printheader (); - - if (!IS_CF_BOARD (board)) { - printk (KERN_DEBUG "sx: Found an SX board at %lx\n", board->hw_base); - printk (KERN_DEBUG "sx: hw_rev: %d, assembly level: %d, uniq ID:%08x, ", - vpdp.hwrev, vpdp.hwass, vpdp.uniqid); - printk ( "Manufactured: %d/%d\n", - 1970 + vpdp.myear, vpdp.mweek); + printheader(); + if (!IS_CF_BOARD(board)) { + printk(KERN_DEBUG "sx: Found an SX board at %lx\n", + board->hw_base); + printk(KERN_DEBUG "sx: hw_rev: %d, assembly level: %d, " + "uniq ID:%08x, ", + vpdp.hwrev, vpdp.hwass, vpdp.uniqid); + printk("Manufactured: %d/%d\n", 1970 + vpdp.myear, vpdp.mweek); - if ((((vpdp.uniqid >> 24) & SX_UNIQUEID_MASK) != SX_PCI_UNIQUEID1) && - (((vpdp.uniqid >> 24) & SX_UNIQUEID_MASK) != SX_ISA_UNIQUEID1)) { - /* This might be a bit harsh. This was the primary reason the - SX/ISA card didn't work at first... */ - printk (KERN_ERR "sx: Hmm. Not an SX/PCI or SX/ISA card. Sorry: giving up.\n"); + if ((((vpdp.uniqid >> 24) & SX_UNIQUEID_MASK) != + SX_PCI_UNIQUEID1) && (((vpdp.uniqid >> 24) & + SX_UNIQUEID_MASK) != SX_ISA_UNIQUEID1)) { + /* This might be a bit harsh. This was the primary + reason the SX/ISA card didn't work at first... */ + printk(KERN_ERR "sx: Hmm. Not an SX/PCI or SX/ISA " + "card. Sorry: giving up.\n"); return (0); } - if (((vpdp.uniqid >> 24) & SX_UNIQUEID_MASK) == SX_ISA_UNIQUEID1) { + if (((vpdp.uniqid >> 24) & SX_UNIQUEID_MASK) == + SX_ISA_UNIQUEID1) { if (((unsigned long)board->hw_base) & 0x8000) { - printk (KERN_WARNING "sx: Warning: There may be hardware problems with the card at %lx.\n", board->hw_base); - printk (KERN_WARNING "sx: Read sx.txt for more info.\n"); + printk(KERN_WARNING "sx: Warning: There may be " + "hardware problems with the card at " + "%lx.\n", board->hw_base); + printk(KERN_WARNING "sx: Read sx.txt for more " + "info.\n"); } } } @@ -2111,9 +2231,9 @@ static int __devinit probe_sx (struct sx_board *board) board->nports = -1; /* This resets the processor, and keeps it off the bus. */ - if (!sx_reset (board)) + if (!sx_reset(board)) return 0; - sx_dprintk (SX_DEBUG_INIT, "reset the board...\n"); + sx_dprintk(SX_DEBUG_INIT, "reset the board...\n"); func_exit(); return 1; @@ -2127,28 +2247,27 @@ static int __devinit probe_sx (struct sx_board *board) card. 0xe0000 and 0xf0000 are taken by the BIOS. That only leaves 0xc0000, 0xc8000, 0xd0000 and 0xd8000 . */ -static int __devinit probe_si (struct sx_board *board) +static int __devinit probe_si(struct sx_board *board) { int i; func_enter(); - sx_dprintk (SX_DEBUG_PROBE, "Going to verify SI signature hw %lx at %p.\n", board->hw_base, - board->base + SI2_ISA_ID_BASE); + sx_dprintk(SX_DEBUG_PROBE, "Going to verify SI signature hw %lx at " + "%p.\n", board->hw_base, board->base + SI2_ISA_ID_BASE); if (sx_debug & SX_DEBUG_PROBE) my_hd_io(board->base + SI2_ISA_ID_BASE, 0x8); if (!IS_EISA_BOARD(board)) { - if( IS_SI1_BOARD(board) ) - { - for (i=0;i<8;i++) { - write_sx_byte (board, SI2_ISA_ID_BASE+7-i,i); - + if (IS_SI1_BOARD(board)) { + for (i = 0; i < 8; i++) { + write_sx_byte(board, SI2_ISA_ID_BASE + 7 - i,i); + } } - } - for (i=0;i<8;i++) { - if ((read_sx_byte (board, SI2_ISA_ID_BASE+7-i) & 7) != i) { - func_exit (); + for (i = 0; i < 8; i++) { + if ((read_sx_byte(board, SI2_ISA_ID_BASE + 7 - i) & 7) + != i) { + func_exit(); return 0; } } @@ -2158,20 +2277,20 @@ static int __devinit probe_si (struct sx_board *board) but to prevent trouble, we'd better double check that we don't have an SI1 board when we're probing for an SI2 board.... */ - write_sx_byte (board, SI2_ISA_ID_BASE,0x10); - if ( IS_SI1_BOARD(board)) { + write_sx_byte(board, SI2_ISA_ID_BASE, 0x10); + if (IS_SI1_BOARD(board)) { /* This should be an SI1 board, which has this location writable... */ - if (read_sx_byte (board, SI2_ISA_ID_BASE) != 0x10) { - func_exit (); - return 0; + if (read_sx_byte(board, SI2_ISA_ID_BASE) != 0x10) { + func_exit(); + return 0; } } else { /* This should be an SI2 board, which has the bottom 3 bits non-writable... */ - if (read_sx_byte (board, SI2_ISA_ID_BASE) == 0x10) { - func_exit (); - return 0; + if (read_sx_byte(board, SI2_ISA_ID_BASE) == 0x10) { + func_exit(); + return 0; } } @@ -2179,35 +2298,35 @@ static int __devinit probe_si (struct sx_board *board) but to prevent trouble, we'd better double check that we don't have an SI1 board when we're probing for an SI2 board.... */ - write_sx_byte (board, SI2_ISA_ID_BASE,0x10); - if ( IS_SI1_BOARD(board)) { + write_sx_byte(board, SI2_ISA_ID_BASE, 0x10); + if (IS_SI1_BOARD(board)) { /* This should be an SI1 board, which has this location writable... */ - if (read_sx_byte (board, SI2_ISA_ID_BASE) != 0x10) { + if (read_sx_byte(board, SI2_ISA_ID_BASE) != 0x10) { func_exit(); - return 0; + return 0; } } else { /* This should be an SI2 board, which has the bottom 3 bits non-writable... */ - if (read_sx_byte (board, SI2_ISA_ID_BASE) == 0x10) { - func_exit (); - return 0; + if (read_sx_byte(board, SI2_ISA_ID_BASE) == 0x10) { + func_exit(); + return 0; } } - printheader (); + printheader(); - printk (KERN_DEBUG "sx: Found an SI board at %lx\n", board->hw_base); + printk(KERN_DEBUG "sx: Found an SI board at %lx\n", board->hw_base); /* Compared to the SX boards, it is a complete guess as to what - this card is up to... */ + this card is up to... */ board->nports = -1; /* This resets the processor, and keeps it off the bus. */ - if (!sx_reset (board)) + if (!sx_reset(board)) return 0; - sx_dprintk (SX_DEBUG_INIT, "reset the board...\n"); + sx_dprintk(SX_DEBUG_INIT, "reset the board...\n"); func_exit(); return 1; @@ -2216,7 +2335,7 @@ static int __devinit probe_si (struct sx_board *board) static const struct tty_operations sx_ops = { .break_ctl = sx_break, - .open = sx_open, + .open = sx_open, .close = gs_close, .write = gs_write, .put_char = gs_put_char, @@ -2251,8 +2370,7 @@ static int sx_init_drivers(void) sx_driver->type = TTY_DRIVER_TYPE_SERIAL; sx_driver->subtype = SERIAL_TYPE_NORMAL; sx_driver->init_termios = tty_std_termios; - sx_driver->init_termios.c_cflag = - B9600 | CS8 | CREAD | HUPCL | CLOCAL; + sx_driver->init_termios.c_cflag = B9600 | CS8 | CREAD | HUPCL | CLOCAL; sx_driver->init_termios.c_ispeed = 9600; sx_driver->init_termios.c_ospeed = 9600; sx_driver->flags = TTY_DRIVER_REAL_RAW; @@ -2261,14 +2379,14 @@ static int sx_init_drivers(void) if ((error = tty_register_driver(sx_driver))) { put_tty_driver(sx_driver); printk(KERN_ERR "sx: Couldn't register sx driver, error = %d\n", - error); + error); return 1; } func_exit(); return 0; } -static int sx_init_portstructs (int nboards, int nports) +static int sx_init_portstructs(int nboards, int nports) { struct sx_board *board; struct sx_port *port; @@ -2279,7 +2397,8 @@ static int sx_init_portstructs (int nboards, int nports) func_enter(); /* Many drivers statically allocate the maximum number of ports - There is no reason not to allocate them dynamically. Is there? -- REW */ + There is no reason not to allocate them dynamically. + Is there? -- REW */ sx_ports = kcalloc(nports, sizeof(struct sx_port), GFP_KERNEL); if (!sx_ports) return -ENOMEM; @@ -2288,10 +2407,10 @@ static int sx_init_portstructs (int nboards, int nports) for (i = 0; i < nboards; i++) { board = &boards[i]; board->ports = port; - for (j=0; j < boards[i].nports;j++) { - sx_dprintk (SX_DEBUG_INIT, "initing port %d\n", j); + for (j = 0; j < boards[i].nports; j++) { + sx_dprintk(SX_DEBUG_INIT, "initing port %d\n", j); port->gs.magic = SX_MAGIC; - port->gs.close_delay = HZ/2; + port->gs.close_delay = HZ / 2; port->gs.closing_wait = 30 * HZ; port->board = board; port->gs.rd = &sx_real_driver; @@ -2303,8 +2422,8 @@ static int sx_init_portstructs (int nboards, int nports) * Initializing wait queue */ init_waitqueue_head(&port->gs.open_wait); - init_waitqueue_head(&port->gs.close_wait); - + init_waitqueue_head(&port->gs.close_wait); + port++; } } @@ -2315,28 +2434,36 @@ static int sx_init_portstructs (int nboards, int nports) board = &boards[i]; board->port_base = portno; /* Possibly the configuration was rejected. */ - sx_dprintk (SX_DEBUG_PROBE, "Board has %d channels\n", board->nports); - if (board->nports <= 0) continue; + sx_dprintk(SX_DEBUG_PROBE, "Board has %d channels\n", + board->nports); + if (board->nports <= 0) + continue; /* XXX byteorder ?? */ - for (addr = 0x80;addr != 0;addr = read_sx_word (board, addr) & 0x7fff) { - chans = sx_read_module_byte (board, addr, mc_type); - sx_dprintk (SX_DEBUG_PROBE, "Module at %x: %d channels\n", addr, chans); - sx_dprintk (SX_DEBUG_PROBE, "Port at"); - for (j=0;j<chans;j++) { - /* The "sx-way" is the way it SHOULD be done. That way in the - future, the firmware may for example pack the structures a bit - more efficient. Neil tells me it isn't going to happen anytime - soon though. */ + for (addr = 0x80; addr != 0; + addr = read_sx_word(board, addr) & 0x7fff) { + chans = sx_read_module_byte(board, addr, mc_type); + sx_dprintk(SX_DEBUG_PROBE, "Module at %x: %d " + "channels\n", addr, chans); + sx_dprintk(SX_DEBUG_PROBE, "Port at"); + for (j = 0; j < chans; j++) { + /* The "sx-way" is the way it SHOULD be done. + That way in the future, the firmware may for + example pack the structures a bit more + efficient. Neil tells me it isn't going to + happen anytime soon though. */ if (IS_SX_BOARD(board)) - port->ch_base = sx_read_module_word (board, addr+j*2, mc_chan_pointer); + port->ch_base = sx_read_module_word( + board, addr + j * 2, + mc_chan_pointer); else - port->ch_base = addr + 0x100 + 0x300*j; + port->ch_base = addr + 0x100 + 0x300 *j; - sx_dprintk (SX_DEBUG_PROBE, " %x", port->ch_base); + sx_dprintk(SX_DEBUG_PROBE, " %x", + port->ch_base); port->line = portno++; port++; } - sx_dprintk (SX_DEBUG_PROBE, "\n"); + sx_dprintk(SX_DEBUG_PROBE, "\n"); } /* This has to be done earlier. */ /* board->flags |= SX_BOARD_INITIALIZED; */ @@ -2350,7 +2477,7 @@ static unsigned int sx_find_free_board(void) { unsigned int i; - for (i = 0; i < SX_NBOARDS; i++) + for (i = 0; i < SX_NBOARDS; i++) if (!(boards[i].flags & SX_BOARD_PRESENT)) break; @@ -2378,7 +2505,7 @@ static void __devexit sx_remove_card(struct sx_board *board) del_timer(&board->timer); iounmap(board->base); - board->flags &= ~(SX_BOARD_INITIALIZED|SX_BOARD_PRESENT); + board->flags &= ~(SX_BOARD_INITIALIZED | SX_BOARD_PRESENT); } } @@ -2403,17 +2530,17 @@ static int __devinit sx_eisa_probe(struct device *dev) mutex_unlock(&sx_boards_lock); dev_info(dev, "XIO : Signature found in EISA slot %lu, " - "Product %d Rev %d (REPORT THIS TO LKLM)\n", - eisa_slot >> 12, - inb(eisa_slot + EISA_VENDOR_ID_OFFSET + 2), - inb(eisa_slot + EISA_VENDOR_ID_OFFSET + 3)); + "Product %d Rev %d (REPORT THIS TO LKLM)\n", + eisa_slot >> 12, + inb(eisa_slot + EISA_VENDOR_ID_OFFSET + 2), + inb(eisa_slot + EISA_VENDOR_ID_OFFSET + 3)); board->eisa_base = eisa_slot; board->flags &= ~SX_BOARD_TYPE; board->flags |= SI_EISA_BOARD; board->hw_base = ((inb(eisa_slot + 0xc01) << 8) + - inb(eisa_slot + 0xc00)) << 16; + inb(eisa_slot + 0xc00)) << 16; board->base2 = board->base = ioremap(board->hw_base, SI2_EISA_WINDOW_LEN); @@ -2448,6 +2575,7 @@ static struct eisa_device_id sx_eisa_tbl[] = { { "SLX" }, { "" } }; + MODULE_DEVICE_TABLE(eisa, sx_eisa_tbl); static struct eisa_driver sx_eisadriver = { @@ -2478,22 +2606,23 @@ static void __devinit fix_sx_pci(struct pci_dev *pdev, struct sx_board *board) void __iomem *rebase; unsigned int t; -#define CNTRL_REG_OFFSET 0x50 -#define CNTRL_REG_GOODVALUE 0x18260000 +#define CNTRL_REG_OFFSET 0x50 +#define CNTRL_REG_GOODVALUE 0x18260000 pci_read_config_dword(pdev, PCI_BASE_ADDRESS_0, &hwbase); hwbase &= PCI_BASE_ADDRESS_MEM_MASK; rebase = ioremap(hwbase, 0x80); - t = readl (rebase + CNTRL_REG_OFFSET); + t = readl(rebase + CNTRL_REG_OFFSET); if (t != CNTRL_REG_GOODVALUE) { - printk (KERN_DEBUG "sx: performing cntrl reg fix: %08x -> %08x\n", t, CNTRL_REG_GOODVALUE); - writel (CNTRL_REG_GOODVALUE, rebase + CNTRL_REG_OFFSET); + printk(KERN_DEBUG "sx: performing cntrl reg fix: %08x -> " + "%08x\n", t, CNTRL_REG_GOODVALUE); + writel(CNTRL_REG_GOODVALUE, rebase + CNTRL_REG_OFFSET); } iounmap(rebase); } static int __devinit sx_pci_probe(struct pci_dev *pdev, - const struct pci_device_id *ent) + const struct pci_device_id *ent) { struct sx_board *board; unsigned int i; @@ -2515,28 +2644,28 @@ static int __devinit sx_pci_probe(struct pci_dev *pdev, board->flags &= ~SX_BOARD_TYPE; board->flags |= (pdev->subsystem_vendor == 0x200) ? SX_PCI_BOARD : - SX_CFPCI_BOARD; + SX_CFPCI_BOARD; /* CF boards use base address 3.... */ - if (IS_CF_BOARD (board)) + if (IS_CF_BOARD(board)) board->hw_base = pci_resource_start(pdev, 3); else board->hw_base = pci_resource_start(pdev, 2); board->base2 = - board->base = ioremap(board->hw_base, WINDOW_LEN (board)); + board->base = ioremap(board->hw_base, WINDOW_LEN(board)); if (!board->base) { dev_err(&pdev->dev, "ioremap failed\n"); goto err_flag; } /* Most of the stuff on the CF board is offset by 0x18000 .... */ - if (IS_CF_BOARD (board)) + if (IS_CF_BOARD(board)) board->base += 0x18000; board->irq = pdev->irq; dev_info(&pdev->dev, "Got a specialix card: %p(%d) %x.\n", board->base, - board->irq, board->flags); + board->irq, board->flags); if (!probe_sx(board)) { retval = -EIO; @@ -2567,11 +2696,12 @@ static void __devexit sx_pci_remove(struct pci_dev *pdev) its because the standard requires it. So check for SUBVENDOR_ID. */ static struct pci_device_id sx_pci_tbl[] = { { PCI_VENDOR_ID_SPECIALIX, PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8, - .subvendor = 0x0200, .subdevice = PCI_ANY_ID }, + .subvendor = 0x0200,.subdevice = PCI_ANY_ID }, { PCI_VENDOR_ID_SPECIALIX, PCI_DEVICE_ID_SPECIALIX_SX_XIO_IO8, - .subvendor = 0x0300, .subdevice = PCI_ANY_ID }, + .subvendor = 0x0300,.subdevice = PCI_ANY_ID }, { 0 } }; + MODULE_DEVICE_TABLE(pci, sx_pci_tbl); static struct pci_driver sx_pcidriver = { @@ -2581,7 +2711,7 @@ static struct pci_driver sx_pcidriver = { .remove = __devexit_p(sx_pci_remove) }; -static int __init sx_init(void) +static int __init sx_init(void) { #ifdef CONFIG_EISA int retval1; @@ -2594,29 +2724,30 @@ static int __init sx_init(void) int retval; func_enter(); - sx_dprintk (SX_DEBUG_INIT, "Initing sx module... (sx_debug=%d)\n", sx_debug); - if (abs ((long) (&sx_debug) - sx_debug) < 0x10000) { - printk (KERN_WARNING "sx: sx_debug is an address, instead of a value. " - "Assuming -1.\n"); - printk ("(%p)\n", &sx_debug); - sx_debug=-1; + sx_dprintk(SX_DEBUG_INIT, "Initing sx module... (sx_debug=%d)\n", + sx_debug); + if (abs((long)(&sx_debug) - sx_debug) < 0x10000) { + printk(KERN_WARNING "sx: sx_debug is an address, instead of a " + "value. Assuming -1.\n(%p)\n", &sx_debug); + sx_debug = -1; } if (misc_register(&sx_fw_device) < 0) { - printk(KERN_ERR "SX: Unable to register firmware loader driver.\n"); + printk(KERN_ERR "SX: Unable to register firmware loader " + "driver.\n"); return -EIO; } #ifdef CONFIG_ISA - for (i=0;i<NR_SX_ADDRS;i++) { + for (i = 0; i < NR_SX_ADDRS; i++) { board = &boards[found]; board->hw_base = sx_probe_addrs[i]; board->base2 = board->base = ioremap(board->hw_base, SX_WINDOW_LEN); board->flags &= ~SX_BOARD_TYPE; - board->flags |= SX_ISA_BOARD; - board->irq = sx_irqmask?-1:0; + board->flags |= SX_ISA_BOARD; + board->irq = sx_irqmask ? -1 : 0; - if (probe_sx (board)) { + if (probe_sx(board)) { board->flags |= SX_BOARD_PRESENT; found++; } else { @@ -2624,36 +2755,36 @@ static int __init sx_init(void) } } - for (i=0;i<NR_SI_ADDRS;i++) { + for (i = 0; i < NR_SI_ADDRS; i++) { board = &boards[found]; board->hw_base = si_probe_addrs[i]; board->base2 = board->base = ioremap(board->hw_base, SI2_ISA_WINDOW_LEN); board->flags &= ~SX_BOARD_TYPE; - board->flags |= SI_ISA_BOARD; - board->irq = sx_irqmask ?-1:0; + board->flags |= SI_ISA_BOARD; + board->irq = sx_irqmask ? -1 : 0; - if (probe_si (board)) { + if (probe_si(board)) { board->flags |= SX_BOARD_PRESENT; found++; } else { - iounmap (board->base); + iounmap(board->base); } } - for (i=0;i<NR_SI1_ADDRS;i++) { + for (i = 0; i < NR_SI1_ADDRS; i++) { board = &boards[found]; board->hw_base = si1_probe_addrs[i]; board->base2 = board->base = ioremap(board->hw_base, SI1_ISA_WINDOW_LEN); board->flags &= ~SX_BOARD_TYPE; - board->flags |= SI1_ISA_BOARD; - board->irq = sx_irqmask ?-1:0; + board->flags |= SI1_ISA_BOARD; + board->irq = sx_irqmask ? -1 : 0; - if (probe_si (board)) { + if (probe_si(board)) { board->flags |= SX_BOARD_PRESENT; found++; } else { - iounmap (board->base); + iounmap(board->base); } } #endif @@ -2663,23 +2794,22 @@ static int __init sx_init(void) retval = pci_register_driver(&sx_pcidriver); if (found) { - printk (KERN_INFO "sx: total of %d boards detected.\n", found); + printk(KERN_INFO "sx: total of %d boards detected.\n", found); retval = 0; } else if (retval) { #ifdef CONFIG_EISA if (retval1) #endif - misc_deregister(&sx_fw_device); + misc_deregister(&sx_fw_device); } func_exit(); return retval; } - -static void __exit sx_exit (void) +static void __exit sx_exit(void) { - int i; + int i; func_enter(); #ifdef CONFIG_EISA @@ -2691,17 +2821,17 @@ static void __exit sx_exit (void) sx_remove_card(&boards[i]); if (misc_deregister(&sx_fw_device) < 0) { - printk (KERN_INFO "sx: couldn't deregister firmware loader device\n"); + printk(KERN_INFO "sx: couldn't deregister firmware loader " + "device\n"); } - sx_dprintk (SX_DEBUG_CLEANUP, "Cleaning up drivers (%d)\n", sx_initialized); + sx_dprintk(SX_DEBUG_CLEANUP, "Cleaning up drivers (%d)\n", + sx_initialized); if (sx_initialized) - sx_release_drivers (); + sx_release_drivers(); - kfree (sx_ports); + kfree(sx_ports); func_exit(); } module_init(sx_init); module_exit(sx_exit); - - |